Deck 7: Quantitative Composition of Compounds

ملء الشاشة (f)
exit full mode
سؤال
What is the mass of 1.36 <strong>What is the mass of 1.36   10<sup>22</sup> molecules of HCl?</strong> A)0.824g B)1610g C)36.5g D)136g <div style=padding-top: 35px> 1022 molecules of HCl?

A)0.824g
B)1610g
C)36.5g
D)136g
استخدم زر المسافة أو
up arrow
down arrow
لقلب البطاقة.
سؤال
How many molecules are present in 0.340g of HCl?

A)1.78 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> <div style=padding-top: 35px> 10-22
B)6.46 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> <div style=padding-top: 35px> 1025
C)5.61 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> <div style=padding-top: 35px> 1021
D)2.06 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> <div style=padding-top: 35px> 10-23
سؤال
How many moles of chloride ions are present in 18.4g of CaCl2?

A)0.332 moles
B)0.166 moles
C)6.03 moles
D)184 moles
سؤال
How many moles are present in 140.g of CaCl2?

A)15500 moles
B)1.46 moles
C)1.26 moles
D)0.793 moles
سؤال
What is the mass of 1.80 moles of MgSO4?

A)1.80g
B)10.8g
C)217g
D)1.08 <strong>What is the mass of 1.80 moles of MgSO<sub>4</sub>?</strong> A)1.80g B)10.8g C)217g D)1.08   10<sup>24 </sup>g <div style=padding-top: 35px> 1024 g
سؤال
What is the mass of 4.36 <strong>What is the mass of 4.36   10<sup>23</sup> molecules of CCl<sub>4</sub>?</strong> A)312g B)212g C)111g D)154g <div style=padding-top: 35px> 1023 molecules of CCl4?

A)312g
B)212g
C)111g
D)154g
سؤال
How many moles are present in a sample of HCl with a mass of 3.65g?

A)3.46 moles
B)0.100 moles
C)2.19 <strong>How many moles are present in a sample of HCl with a mass of 3.65g?</strong> A)3.46 moles B)0.100 moles C)2.19   10<sup>24 </sup>moles D)10.0 moles <div style=padding-top: 35px> 1024 moles
D)10.0 moles
سؤال
What is the mass of one mole of HCl?

A)1.01g
B)6 <strong>What is the mass of one mole of HCl?</strong> A)1.01g B)6   10<sup>23 </sup>g C)35.45g D)36.46g <div style=padding-top: 35px> 1023 g
C)35.45g
D)36.46g
سؤال
How many units of AgNO3 are present in 147g of this compound?

A)4.15 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> <div style=padding-top: 35px> 10-20
B)5.21 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> <div style=padding-top: 35px> 1023
C)1.47 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> <div style=padding-top: 35px> 1021
D)6.96 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> <div style=padding-top: 35px> 1023
سؤال
How many O atoms are present in 1.04 moles of MgSO4?

A)1.04 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms <div style=padding-top: 35px> 1023 atoms
B)4.16 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms <div style=padding-top: 35px> 1023 atoms
C)2.51 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms <div style=padding-top: 35px> 1024 atoms
D)6.26 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms <div style=padding-top: 35px> 1023 atoms
سؤال
How many molecules are present in 146g of HCl?

A)3.20 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> <div style=padding-top: 35px> 1027
B)8.84 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> <div style=padding-top: 35px> 10-21
C)2.41 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> <div style=padding-top: 35px> 1024
D)1.50 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> <div style=padding-top: 35px> 1023
سؤال
How many chloride ions are present in 347g of CaCl2?

A)1.88 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> <div style=padding-top: 35px> 1024
B)1.93 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> <div style=padding-top: 35px> 1023
C)3.77 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> <div style=padding-top: 35px> 1024
D)6.40 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> <div style=padding-top: 35px> 10-20
سؤال
What is the mass of 0.118 moles of AgNO3?

A)0.118 g
B)0.710g
C)7.10 <strong>What is the mass of 0.118 moles of AgNO<sub>3</sub>?</strong> A)0.118 g B)0.710g C)7.10   10<sup>23 </sup>g. D)20.0g <div style=padding-top: 35px> 1023 g.
D)20.0g
سؤال
How many units of MgSO4 are present in 18.0g of this compound?

A)6.02 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> <div style=padding-top: 35px> 1023
B)3.60 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> <div style=padding-top: 35px> 10-21
C)4.03 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> <div style=padding-top: 35px> 1024
D)9.00 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> <div style=padding-top: 35px> 1022
سؤال
What is the mass of 0.360 moles of HCl?

A)0.360g
B)13.1g
C)101g
D)2.17 <strong>What is the mass of 0.360 moles of HCl?</strong> A)0.360g B)13.1g C)101g D)2.17   10<sup>23 </sup>g <div style=padding-top: 35px> 1023 g
سؤال
How many units of AgNO3 are present in 1.36g of this compound?

A)3.84 X 10-22
B)4.82 X 10 21
C)1.36 X 1023
D)7.52 X 1025
سؤال
How many moles of silver ions are present in 32.46g of AgNO3?

A)0.191 moles
B)5520 moles
C)5.23 moles
D)32.5 moles
سؤال
How many moles are present in 0.140g of HCl?

A)0.140 moles
B)0.00384 moles
C)1.40 moles
D)5.01 moles
سؤال
How many moles are present in 1.64g of MgSO4?

A)0.734 moles
B)1.64 moles
C)120.Moles
D)0.0136 moles
سؤال
What is the mass of 3.61 moles of CaCl2?

A)3.61g
B)21.7g
C)21.7 <strong>What is the mass of 3.61 moles of CaCl<sub>2</sub>?</strong> A)3.61g B)21.7g C)21.7   10<sup>23 </sup>g D)401g <div style=padding-top: 35px> 1023 g
D)401g
سؤال
How many molecules are present in 1.30 moles of CCl4?

A)2.00 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> <div style=padding-top: 35px> 1025
B)7.83 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> <div style=padding-top: 35px> 1023
C)1.30 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> <div style=padding-top: 35px> 1023
D)7.83 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> <div style=padding-top: 35px> 1024
سؤال
How many molecules are present in 0.500 moles of CH4?

A)3.01 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> <div style=padding-top: 35px> 1023
B)6.02 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> <div style=padding-top: 35px> 1023
C)8.00 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> <div style=padding-top: 35px> 1023
D)5.00 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> <div style=padding-top: 35px> 1022
سؤال
How many chlorine atoms are present in 0.778 moles of Cl2?

A)4.69 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 <div style=padding-top: 35px> 1023
B)9.37 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 <div style=padding-top: 35px> 1023
C)2.34 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 <div style=padding-top: 35px> 1023
D)1.56
سؤال
How many molecules are present in 4.21 moles of HBr?

A)1.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> <div style=padding-top: 35px> 1025
B)2.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> <div style=padding-top: 35px> 1025
C)4.21 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> <div style=padding-top: 35px> 1023
D)2.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> <div style=padding-top: 35px> 1024
سؤال
How many moles of hydrogen atoms are present in 2.41 <strong>How many moles of hydrogen atoms are present in 2.41   10<sup>24</sup> molecules of CH<sub>4</sub>?</strong> A)0.250 B)4.00 C)1.00 D)16.0 <div style=padding-top: 35px> 1024 molecules of CH4?

A)0.250
B)4.00
C)1.00
D)16.0
سؤال
How many moles are present in 1.51 <strong>How many moles are present in 1.51   10<sup>23</sup> molecules of HCl?</strong> A)9.12 B)0.251 C)3.99 D)146 <div style=padding-top: 35px> 1023 molecules of HCl?

A)9.12
B)0.251
C)3.99
D)146
سؤال
How many moles are present in 6.02 <strong>How many moles are present in 6.02   10<sup>24</sup> molecules of I<sub>2</sub>?</strong> A)0.100 B)1.00 C)10.0 D)100. <div style=padding-top: 35px> 1024 molecules of I2?

A)0.100
B)1.00
C)10.0
D)100.
سؤال
What is the molar mass of KClO3?

A)90.55g
B)122.55g
C)161.45g
D)6.02 <strong>What is the molar mass of KClO<sub>3</sub>?</strong> A)90.55g B)122.55g C)161.45g D)6.02   10<sup>23 </sup>g <div style=padding-top: 35px> 1023 g
سؤال
What is the mass of 3.06 <strong>What is the mass of 3.06   10<sup>22</sup> molecules of CO<sub>2</sub>?</strong> A)135g B)2.24g C)14.4g D)866g <div style=padding-top: 35px> 1022 molecules of CO2?

A)135g
B)2.24g
C)14.4g
D)866g
سؤال
How many moles are present in 1.21 <strong>How many moles are present in 1.21   10<sup>24</sup> molecules of HBr?</strong> A)7.28 B)0.500 C)2.01 D)0.201 <div style=padding-top: 35px> 1024 molecules of HBr?

A)7.28
B)0.500
C)2.01
D)0.201
سؤال
How many moles are present in 6.02 <strong>How many moles are present in 6.02   10<sup>22 </sup>molecules of I<sub>2</sub>?</strong> A)0.100 B)1.00 C)10.0 D)100. <div style=padding-top: 35px> 1022 molecules of I2?

A)0.100
B)1.00
C)10.0
D)100.
سؤال
What is the mass of 2.00 <strong>What is the mass of 2.00   10<sup>23</sup> molecules of H<sub>2</sub>O?</strong> A)5.99g B)54.2g C)18.0g D)36.0g <div style=padding-top: 35px> 1023 molecules of H2O?

A)5.99g
B)54.2g
C)18.0g
D)36.0g
سؤال
What is the mass of 1.20 <strong>What is the mass of 1.20   10<sup>23</sup> molecules of CH<sub>3</sub>OH?</strong> A)161g B)38.5g C)6.39g D)32.1g <div style=padding-top: 35px> 1023 molecules of CH3OH?

A)161g
B)38.5g
C)6.39g
D)32.1g
سؤال
What is the molar mass of sodium chloride?

A)6.02 <strong>What is the molar mass of sodium chloride?</strong> A)6.02   10<sup>23 </sup>g B)1.00g C)67.53g D)58.44g <div style=padding-top: 35px> 1023 g
B)1.00g
C)67.53g
D)58.44g
سؤال
What is the molar mass of Mg(ClO4)2?

A)223.21g
B)1.00g
C)301.01g
D)187.76g
سؤال
How many molecules of CH3OH will contain 3.20 x 1023 H atoms?

A)3.20 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> <div style=padding-top: 35px> 1023
B)1.07 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> <div style=padding-top: 35px> 1023
C)8.00 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> <div style=padding-top: 35px> 1022
D)1.28 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> <div style=padding-top: 35px> 1024
سؤال
How many molecules are present in 0.300 moles of HI?

A)2.43 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> <div style=padding-top: 35px> 1024
B)1.81 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> <div style=padding-top: 35px> 1023
C)2.01 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> <div style=padding-top: 35px> 1024
D)3.00 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> <div style=padding-top: 35px> 1022
سؤال
What is the mass of 3.01 <strong>What is the mass of 3.01   10<sup>24</sup> molecules of Cl<sub>2</sub>?</strong> A)137g B)14.2g C)213g D)355g <div style=padding-top: 35px> 1024 molecules of Cl2?

A)137g
B)14.2g
C)213g
D)355g
سؤال
How many moles are present in 3.01 <strong>How many moles are present in 3.01   10<sup>23</sup> molecules of CH<sub>4</sub>?</strong> A)48.0 B)0.500 C)8.00 D)2.00 <div style=padding-top: 35px> 1023 molecules of CH4?

A)48.0
B)0.500
C)8.00
D)2.00
سؤال
How many molecules are present in 4.00 moles of Cl2?

A)1.51 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> <div style=padding-top: 35px> 1023
B)2.41 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> <div style=padding-top: 35px> 1024
C)7.09 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> <div style=padding-top: 35px> 1024
D)2.84 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> <div style=padding-top: 35px> 1025
سؤال
What is the percent by mass of hydrogen in NaHCO3?

A)27.4%
B)1.20%
C)24.7%
D)44.2%
سؤال
A compound is found to consist of 1.37g of iron and 2.62g of chlorine.What is the percent by mass of chlorine in the compound?

A)34.3%
B)65.7%
C)52.3%
D)87.6%
سؤال
A substance is known to contain 2.00 g of carbon for every 5.33 g of oxygen.How many grams of carbon will be present in 55.0 g of this substance?

A)15.0 g
B)27.5 g
C)20.6 g
D)10.3 g
سؤال
What is the percent by mass of chlorine in Ca(ClO3)2?

A)20.7%
B)34.3%
C)38.7%
D)22.8%
سؤال
How many grams of carbon are present in 45.0 g of CCl4?

A)0.293 g
B)3.51 g
C)5.76 g
D)41.49 g
سؤال
What is the molar mass of CaSO4?

A)88.14g
B)136.14g
C)184.30g
D)232.32g
سؤال
A compound is found to consist of 2.89g of calcium and 5.11g of chlorine.What is the percent by mass of calcium in the compound?

A)56.6%
B)36.1%
C)63.9%
D)100%
سؤال
A 6.00g sample of calcium sulfide is found to contain 3.33g of calcium.What is the percent by mass of sulfur in the compound?

A)80.2%
B)35.7%
C)44.5%
D)28.6%
سؤال
How many grams of oxygen are present in 76.8 g of CO2?

A)1.75 g
B)55.8 g
C)27.9 g
D)48.9 g
سؤال
A substance is found to consist of 1.900g of silver,0.250g of nitrogen,and 0.850g of oxygen.What is the percent by mass of oxygen in the compound?

A)28.3%
B)8.33%
C)63.3%
D)85.0%
سؤال
What is the empirical formula of a substance that consists of 85.60% carbon and 14.40% hydrogen?

A)CH
B)CH2
C)CH3
D)CH4
سؤال
What is the percent by mass of hydrogen in sulfuric acid?

A)1.04%
B)2.06%
C)4.03%
D)5.93%
سؤال
A 10.00g sample of a substance is found to contain 5.12g of water.What is the percent by mass of water in the compound?

A)5.12%
B)4.88%
C)48.8%
D)51.2%
سؤال
A 5.00g sample of potassium chloride is found to contain 2.62g of potassium.What is the percent by mass of potassium in the compound?

A)90.8%
B)47.6%
C)52.4%
D)34.4%
سؤال
What is the molar mass of Sr(NO3)2?

A)117.63g
B)181.63g
C)237.67g
D)211.64g
سؤال
What is the percent by mass of carbon in carbon dioxide?

A)3.66%
B)366%
C)27.28%
D)42.9%
سؤال
A compound is known to consist of 19.36% carbon,3.25% hydrogen,and the rest is oxygen.How many grams of this compound will be needed in order to have 23.5 g of oxygen?

A)30.4 g
B)104 g
C)80.4 g
D)53.1 g
سؤال
What is the molar mass of carbon tetrachloride?

A)47.46g
B)82.91g
C)118.36g
D)153.81g
سؤال
What is the percent by mass of oxygen in water?

A)11.2%
B)88.8%
C)5.94%
D)94.1%
سؤال
What is the percent by mass of hydrogen in HC2H3O2?

A)1.68%
B)5.05%
C)6.73%
D)53.3%
سؤال
A 65.2 g sample of a compound contains 32.1 g of phosphorus and the rest is oxygen.What is the empirical formula of the compound?

A)P3O2
B)PO2
C)PO
D)P2O3
سؤال
What is the molecular formula of a compound with the empirical formula CH and molar mass of 26.04g?

A)CH
B)C2H
C)CH2
D)C2H2
سؤال
What is the empirical formula of a substance that consists of 3.704g aluminum and 3.295g oxygen?

A)AlO
B)AlO2
C)Al2O3
D)Al3O2
سؤال
What is the empirical formula of a substance that consists of 32.86% potassium and 67.14% bromine?

A)KBr
B)K2Br
C)KBr2
D)K2Br3
سؤال
What is the empirical formula of a substance that consists of 0.910g calcium,0.636g nitrogen,and 1.453g oxygen?

A)CaNO
B)Ca2NO7
C)CaN2O4
D)CaN2O6
سؤال
Which statement is incorrect?

A)One mole contains 6.02 <strong>Which statement is incorrect?</strong> A)One mole contains 6.02   10<sup>23</sup> molecules. B)One molar mass equals one mole. C)One mole equals 6.02   10<sup>23 </sup>g of a compound. D)One mole of water contains the same number of molecules as one mole of carbon dioxide.<sub> </sub> <div style=padding-top: 35px> 1023 molecules.
B)One molar mass equals one mole.
C)One mole equals 6.02 <strong>Which statement is incorrect?</strong> A)One mole contains 6.02   10<sup>23</sup> molecules. B)One molar mass equals one mole. C)One mole equals 6.02   10<sup>23 </sup>g of a compound. D)One mole of water contains the same number of molecules as one mole of carbon dioxide.<sub> </sub> <div style=padding-top: 35px> 1023 g of a compound.
D)One mole of water contains the same number of molecules as one mole of carbon dioxide.
سؤال
All the following contain the same number of molecules except

A)64.06g of sulfur dioxide molecules
B)One mole of water molecules
C)88.02g of carbon dioxide molecules
D)2.02g of hydrogen molecules
سؤال
What is the molecular formula of a compound with the empirical formula CH2O and molar mass of 180.18g?

A)CH2O
B)C2H4O2
C)C4H8O4
D)C6H12O6
سؤال
What is the molecular formula of a compound with the empirical formula C13H19O2 and molar mass of 414.64g?

A)CHO
B)C13H19O2
C)C26H38O4
D)C39H57O6
سؤال
In which pair would both compounds have the same empirical formula?

A)H2O and H2O2
B)BaSO4 and BaSO3
C)FeO and Fe2O3
D)C6H12O6 and HC2H3O2
سؤال
What is the empirical formula of a compound that consists of 39.99% carbon,6.73% hydrogen,and 53.28% oxygen?

A)CHO
B)C2HO
C)CH2O
D)CHO2
سؤال
What is the molecular formula of a compound with the empirical formula CH2Cl and molar mass of 98.96g?

A)CH2Cl
B)C2H4Cl2
C)C3H6Cl3
D)C4H8Cl4
سؤال
One atom of sulfur has a mass of

A)5.33 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g <div style=padding-top: 35px> 10-23 g
B)32.06g
C)1.88 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g <div style=padding-top: 35px> 1022 g
D)1.93 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g <div style=padding-top: 35px> 1025 g
سؤال
In which pair would both compounds have the same empirical formula?

A)C2H4 and C3H6
B)K2CrO4 and K2Cr2O7
C)NaHCO3 and Na2CO3
D)FeCl3 and FeCl2
سؤال
A 30.5 g sample of a compound contains 9.29 g of nitrogen and the rest is oxygen.What is the empirical formula of the compound?

A)N2O3
B)N2O
C)NO
D)NO2
سؤال
What is the molecular formula of a compound with the empirical formula CHO2 and molar mass of 90.04g?

A)CHO2
B)C2H2O4
C)C3H3O6
D)C4H4O8
سؤال
What is the empirical formula of a compound that consists of 2.424g magnesium,3.197g sulfur,and 6.380g oxygen?

A)MgSO
B)Mg2SO4
C)MgSO4
D)MgSO3
سؤال
A compound consists of 4.50 g of nitrogen for every 7.71 g of oxygen and has the same empirical and molecular formula.Identify the compound.

A)NO2
B)N2O
C)N2O3
D)NO3
سؤال
One atom of magnesium has a mass of

A)24.31g
B)4.04 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g <div style=padding-top: 35px> 10-23 g
C)2.48 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g <div style=padding-top: 35px> 1022 g
D)6.02 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g <div style=padding-top: 35px> 1023 g
سؤال
What is the molecular formula of a compound with the empirical formula CH2O and molar mass of 60.06g?

A)CH2O
B)C2H4O2
C)C3H6O3
D)C4H8O4
فتح الحزمة
قم بالتسجيل لفتح البطاقات في هذه المجموعة!
Unlock Deck
Unlock Deck
1/111
auto play flashcards
العب
simple tutorial
ملء الشاشة (f)
exit full mode
Deck 7: Quantitative Composition of Compounds
1
What is the mass of 1.36 <strong>What is the mass of 1.36   10<sup>22</sup> molecules of HCl?</strong> A)0.824g B)1610g C)36.5g D)136g 1022 molecules of HCl?

A)0.824g
B)1610g
C)36.5g
D)136g
0.824g
2
How many molecules are present in 0.340g of HCl?

A)1.78 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> 10-22
B)6.46 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> 1025
C)5.61 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> 1021
D)2.06 <strong>How many molecules are present in 0.340g of HCl?</strong> A)1.78   10<sup>-22</sup> B)6.46   10<sup>25</sup> C)5.61   10<sup>21</sup> D)2.06   10<sup>-23</sup> 10-23
5.61 5.61   10<sup>21</sup> 1021
3
How many moles of chloride ions are present in 18.4g of CaCl2?

A)0.332 moles
B)0.166 moles
C)6.03 moles
D)184 moles
0.332 moles
4
How many moles are present in 140.g of CaCl2?

A)15500 moles
B)1.46 moles
C)1.26 moles
D)0.793 moles
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
5
What is the mass of 1.80 moles of MgSO4?

A)1.80g
B)10.8g
C)217g
D)1.08 <strong>What is the mass of 1.80 moles of MgSO<sub>4</sub>?</strong> A)1.80g B)10.8g C)217g D)1.08   10<sup>24 </sup>g 1024 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
6
What is the mass of 4.36 <strong>What is the mass of 4.36   10<sup>23</sup> molecules of CCl<sub>4</sub>?</strong> A)312g B)212g C)111g D)154g 1023 molecules of CCl4?

A)312g
B)212g
C)111g
D)154g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
7
How many moles are present in a sample of HCl with a mass of 3.65g?

A)3.46 moles
B)0.100 moles
C)2.19 <strong>How many moles are present in a sample of HCl with a mass of 3.65g?</strong> A)3.46 moles B)0.100 moles C)2.19   10<sup>24 </sup>moles D)10.0 moles 1024 moles
D)10.0 moles
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
8
What is the mass of one mole of HCl?

A)1.01g
B)6 <strong>What is the mass of one mole of HCl?</strong> A)1.01g B)6   10<sup>23 </sup>g C)35.45g D)36.46g 1023 g
C)35.45g
D)36.46g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
9
How many units of AgNO3 are present in 147g of this compound?

A)4.15 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> 10-20
B)5.21 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> 1023
C)1.47 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> 1021
D)6.96 <strong>How many units of AgNO<sub>3</sub> are present in 147g of this compound?</strong> A)4.15   10<sup>-20</sup> B)5.21   10<sup>23</sup> C)1.47   10<sup>21</sup> D)6.96   10<sup>23</sup> 1023
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
10
How many O atoms are present in 1.04 moles of MgSO4?

A)1.04 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms 1023 atoms
B)4.16 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms 1023 atoms
C)2.51 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms 1024 atoms
D)6.26 <strong>How many O atoms are present in 1.04 moles of MgSO<sub>4</sub>?</strong> A)1.04   10<sup>23</sup> atoms B)4.16   10<sup>23</sup> atoms C)2.51   10<sup>24</sup> atoms D)6.26   10<sup>23</sup> atoms 1023 atoms
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
11
How many molecules are present in 146g of HCl?

A)3.20 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> 1027
B)8.84 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> 10-21
C)2.41 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> 1024
D)1.50 <strong>How many molecules are present in 146g of HCl?</strong> A)3.20   10<sup>27</sup> B)8.84   10<sup>-21</sup> C)2.41   10<sup>24</sup> D)1.50   10<sup>23</sup> 1023
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
12
How many chloride ions are present in 347g of CaCl2?

A)1.88 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> 1024
B)1.93 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> 1023
C)3.77 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> 1024
D)6.40 <strong>How many chloride ions are present in 347g of CaCl<sub>2</sub>?</strong> A)1.88   10<sup>24</sup> B)1.93   10<sup>23</sup> C)3.77   10<sup>24</sup> D)6.40   10<sup>-20</sup> 10-20
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
13
What is the mass of 0.118 moles of AgNO3?

A)0.118 g
B)0.710g
C)7.10 <strong>What is the mass of 0.118 moles of AgNO<sub>3</sub>?</strong> A)0.118 g B)0.710g C)7.10   10<sup>23 </sup>g. D)20.0g 1023 g.
D)20.0g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
14
How many units of MgSO4 are present in 18.0g of this compound?

A)6.02 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> 1023
B)3.60 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> 10-21
C)4.03 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> 1024
D)9.00 <strong>How many units of MgSO<sub>4</sub> are present in 18.0g of this compound?</strong> A)6.02   10<sup>23</sup> B)3.60   10<sup>-21</sup> C)4.03   10<sup>24</sup> D)9.00   10<sup>22</sup> 1022
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
15
What is the mass of 0.360 moles of HCl?

A)0.360g
B)13.1g
C)101g
D)2.17 <strong>What is the mass of 0.360 moles of HCl?</strong> A)0.360g B)13.1g C)101g D)2.17   10<sup>23 </sup>g 1023 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
16
How many units of AgNO3 are present in 1.36g of this compound?

A)3.84 X 10-22
B)4.82 X 10 21
C)1.36 X 1023
D)7.52 X 1025
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
17
How many moles of silver ions are present in 32.46g of AgNO3?

A)0.191 moles
B)5520 moles
C)5.23 moles
D)32.5 moles
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
18
How many moles are present in 0.140g of HCl?

A)0.140 moles
B)0.00384 moles
C)1.40 moles
D)5.01 moles
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
19
How many moles are present in 1.64g of MgSO4?

A)0.734 moles
B)1.64 moles
C)120.Moles
D)0.0136 moles
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
20
What is the mass of 3.61 moles of CaCl2?

A)3.61g
B)21.7g
C)21.7 <strong>What is the mass of 3.61 moles of CaCl<sub>2</sub>?</strong> A)3.61g B)21.7g C)21.7   10<sup>23 </sup>g D)401g 1023 g
D)401g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
21
How many molecules are present in 1.30 moles of CCl4?

A)2.00 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> 1025
B)7.83 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> 1023
C)1.30 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> 1023
D)7.83 <strong>How many molecules are present in 1.30 moles of CCl<sub>4</sub>?</strong> A)2.00   10<sup>25</sup> B)7.83   10<sup>23</sup> C)1.30   10<sup>23</sup> D)7.83   10<sup>24</sup> 1024
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
22
How many molecules are present in 0.500 moles of CH4?

A)3.01 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> 1023
B)6.02 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> 1023
C)8.00 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> 1023
D)5.00 <strong>How many molecules are present in 0.500 moles of CH<sub>4</sub>?</strong> A)3.01   10<sup>23</sup> B)6.02   10<sup>23</sup> C)8.00   10<sup>23</sup> D)5.00   10<sup>22</sup> 1022
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
23
How many chlorine atoms are present in 0.778 moles of Cl2?

A)4.69 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 1023
B)9.37 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 1023
C)2.34 <strong>How many chlorine atoms are present in 0.778 moles of Cl<sub>2</sub>?</strong> A)4.69   10<sup>23</sup> B)9.37   10<sup>23</sup> C)2.34   10<sup>23</sup> D)1.56 1023
D)1.56
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
24
How many molecules are present in 4.21 moles of HBr?

A)1.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> 1025
B)2.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> 1025
C)4.21 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> 1023
D)2.53 <strong>How many molecules are present in 4.21 moles of HBr?</strong> A)1.53   10<sup>25</sup> B)2.53   10<sup>25</sup> C)4.21   10<sup>23</sup> D)2.53   10<sup>24</sup> 1024
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
25
How many moles of hydrogen atoms are present in 2.41 <strong>How many moles of hydrogen atoms are present in 2.41   10<sup>24</sup> molecules of CH<sub>4</sub>?</strong> A)0.250 B)4.00 C)1.00 D)16.0 1024 molecules of CH4?

A)0.250
B)4.00
C)1.00
D)16.0
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
26
How many moles are present in 1.51 <strong>How many moles are present in 1.51   10<sup>23</sup> molecules of HCl?</strong> A)9.12 B)0.251 C)3.99 D)146 1023 molecules of HCl?

A)9.12
B)0.251
C)3.99
D)146
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
27
How many moles are present in 6.02 <strong>How many moles are present in 6.02   10<sup>24</sup> molecules of I<sub>2</sub>?</strong> A)0.100 B)1.00 C)10.0 D)100. 1024 molecules of I2?

A)0.100
B)1.00
C)10.0
D)100.
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
28
What is the molar mass of KClO3?

A)90.55g
B)122.55g
C)161.45g
D)6.02 <strong>What is the molar mass of KClO<sub>3</sub>?</strong> A)90.55g B)122.55g C)161.45g D)6.02   10<sup>23 </sup>g 1023 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
29
What is the mass of 3.06 <strong>What is the mass of 3.06   10<sup>22</sup> molecules of CO<sub>2</sub>?</strong> A)135g B)2.24g C)14.4g D)866g 1022 molecules of CO2?

A)135g
B)2.24g
C)14.4g
D)866g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
30
How many moles are present in 1.21 <strong>How many moles are present in 1.21   10<sup>24</sup> molecules of HBr?</strong> A)7.28 B)0.500 C)2.01 D)0.201 1024 molecules of HBr?

A)7.28
B)0.500
C)2.01
D)0.201
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
31
How many moles are present in 6.02 <strong>How many moles are present in 6.02   10<sup>22 </sup>molecules of I<sub>2</sub>?</strong> A)0.100 B)1.00 C)10.0 D)100. 1022 molecules of I2?

A)0.100
B)1.00
C)10.0
D)100.
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
32
What is the mass of 2.00 <strong>What is the mass of 2.00   10<sup>23</sup> molecules of H<sub>2</sub>O?</strong> A)5.99g B)54.2g C)18.0g D)36.0g 1023 molecules of H2O?

A)5.99g
B)54.2g
C)18.0g
D)36.0g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
33
What is the mass of 1.20 <strong>What is the mass of 1.20   10<sup>23</sup> molecules of CH<sub>3</sub>OH?</strong> A)161g B)38.5g C)6.39g D)32.1g 1023 molecules of CH3OH?

A)161g
B)38.5g
C)6.39g
D)32.1g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
34
What is the molar mass of sodium chloride?

A)6.02 <strong>What is the molar mass of sodium chloride?</strong> A)6.02   10<sup>23 </sup>g B)1.00g C)67.53g D)58.44g 1023 g
B)1.00g
C)67.53g
D)58.44g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
35
What is the molar mass of Mg(ClO4)2?

A)223.21g
B)1.00g
C)301.01g
D)187.76g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
36
How many molecules of CH3OH will contain 3.20 x 1023 H atoms?

A)3.20 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> 1023
B)1.07 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> 1023
C)8.00 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> 1022
D)1.28 <strong>How many molecules of CH<sub>3</sub>OH will contain 3.20 x 10<sup>23</sup> H atoms?</strong> A)3.20   10<sup>23</sup> B)1.07   10<sup>23</sup> C)8.00   10<sup>22</sup> D)1.28   10<sup>24</sup> 1024
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
37
How many molecules are present in 0.300 moles of HI?

A)2.43 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> 1024
B)1.81 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> 1023
C)2.01 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> 1024
D)3.00 <strong>How many molecules are present in 0.300 moles of HI?</strong> A)2.43   10<sup>24</sup> B)1.81   10<sup>23</sup> C)2.01   10<sup>24</sup> D)3.00   10<sup>22</sup> 1022
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
38
What is the mass of 3.01 <strong>What is the mass of 3.01   10<sup>24</sup> molecules of Cl<sub>2</sub>?</strong> A)137g B)14.2g C)213g D)355g 1024 molecules of Cl2?

A)137g
B)14.2g
C)213g
D)355g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
39
How many moles are present in 3.01 <strong>How many moles are present in 3.01   10<sup>23</sup> molecules of CH<sub>4</sub>?</strong> A)48.0 B)0.500 C)8.00 D)2.00 1023 molecules of CH4?

A)48.0
B)0.500
C)8.00
D)2.00
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
40
How many molecules are present in 4.00 moles of Cl2?

A)1.51 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> 1023
B)2.41 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> 1024
C)7.09 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> 1024
D)2.84 <strong>How many molecules are present in 4.00 moles of Cl<sub>2</sub>?</strong> A)1.51   10<sup>23</sup> B)2.41   10<sup>24</sup> C)7.09   10<sup>24</sup> D)2.84   10<sup>25</sup> 1025
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
41
What is the percent by mass of hydrogen in NaHCO3?

A)27.4%
B)1.20%
C)24.7%
D)44.2%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
42
A compound is found to consist of 1.37g of iron and 2.62g of chlorine.What is the percent by mass of chlorine in the compound?

A)34.3%
B)65.7%
C)52.3%
D)87.6%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
43
A substance is known to contain 2.00 g of carbon for every 5.33 g of oxygen.How many grams of carbon will be present in 55.0 g of this substance?

A)15.0 g
B)27.5 g
C)20.6 g
D)10.3 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
44
What is the percent by mass of chlorine in Ca(ClO3)2?

A)20.7%
B)34.3%
C)38.7%
D)22.8%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
45
How many grams of carbon are present in 45.0 g of CCl4?

A)0.293 g
B)3.51 g
C)5.76 g
D)41.49 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
46
What is the molar mass of CaSO4?

A)88.14g
B)136.14g
C)184.30g
D)232.32g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
47
A compound is found to consist of 2.89g of calcium and 5.11g of chlorine.What is the percent by mass of calcium in the compound?

A)56.6%
B)36.1%
C)63.9%
D)100%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
48
A 6.00g sample of calcium sulfide is found to contain 3.33g of calcium.What is the percent by mass of sulfur in the compound?

A)80.2%
B)35.7%
C)44.5%
D)28.6%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
49
How many grams of oxygen are present in 76.8 g of CO2?

A)1.75 g
B)55.8 g
C)27.9 g
D)48.9 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
50
A substance is found to consist of 1.900g of silver,0.250g of nitrogen,and 0.850g of oxygen.What is the percent by mass of oxygen in the compound?

A)28.3%
B)8.33%
C)63.3%
D)85.0%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
51
What is the empirical formula of a substance that consists of 85.60% carbon and 14.40% hydrogen?

A)CH
B)CH2
C)CH3
D)CH4
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
52
What is the percent by mass of hydrogen in sulfuric acid?

A)1.04%
B)2.06%
C)4.03%
D)5.93%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
53
A 10.00g sample of a substance is found to contain 5.12g of water.What is the percent by mass of water in the compound?

A)5.12%
B)4.88%
C)48.8%
D)51.2%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
54
A 5.00g sample of potassium chloride is found to contain 2.62g of potassium.What is the percent by mass of potassium in the compound?

A)90.8%
B)47.6%
C)52.4%
D)34.4%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
55
What is the molar mass of Sr(NO3)2?

A)117.63g
B)181.63g
C)237.67g
D)211.64g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
56
What is the percent by mass of carbon in carbon dioxide?

A)3.66%
B)366%
C)27.28%
D)42.9%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
57
A compound is known to consist of 19.36% carbon,3.25% hydrogen,and the rest is oxygen.How many grams of this compound will be needed in order to have 23.5 g of oxygen?

A)30.4 g
B)104 g
C)80.4 g
D)53.1 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
58
What is the molar mass of carbon tetrachloride?

A)47.46g
B)82.91g
C)118.36g
D)153.81g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
59
What is the percent by mass of oxygen in water?

A)11.2%
B)88.8%
C)5.94%
D)94.1%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
60
What is the percent by mass of hydrogen in HC2H3O2?

A)1.68%
B)5.05%
C)6.73%
D)53.3%
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
61
A 65.2 g sample of a compound contains 32.1 g of phosphorus and the rest is oxygen.What is the empirical formula of the compound?

A)P3O2
B)PO2
C)PO
D)P2O3
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
62
What is the molecular formula of a compound with the empirical formula CH and molar mass of 26.04g?

A)CH
B)C2H
C)CH2
D)C2H2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
63
What is the empirical formula of a substance that consists of 3.704g aluminum and 3.295g oxygen?

A)AlO
B)AlO2
C)Al2O3
D)Al3O2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
64
What is the empirical formula of a substance that consists of 32.86% potassium and 67.14% bromine?

A)KBr
B)K2Br
C)KBr2
D)K2Br3
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
65
What is the empirical formula of a substance that consists of 0.910g calcium,0.636g nitrogen,and 1.453g oxygen?

A)CaNO
B)Ca2NO7
C)CaN2O4
D)CaN2O6
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
66
Which statement is incorrect?

A)One mole contains 6.02 <strong>Which statement is incorrect?</strong> A)One mole contains 6.02   10<sup>23</sup> molecules. B)One molar mass equals one mole. C)One mole equals 6.02   10<sup>23 </sup>g of a compound. D)One mole of water contains the same number of molecules as one mole of carbon dioxide.<sub> </sub> 1023 molecules.
B)One molar mass equals one mole.
C)One mole equals 6.02 <strong>Which statement is incorrect?</strong> A)One mole contains 6.02   10<sup>23</sup> molecules. B)One molar mass equals one mole. C)One mole equals 6.02   10<sup>23 </sup>g of a compound. D)One mole of water contains the same number of molecules as one mole of carbon dioxide.<sub> </sub> 1023 g of a compound.
D)One mole of water contains the same number of molecules as one mole of carbon dioxide.
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
67
All the following contain the same number of molecules except

A)64.06g of sulfur dioxide molecules
B)One mole of water molecules
C)88.02g of carbon dioxide molecules
D)2.02g of hydrogen molecules
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
68
What is the molecular formula of a compound with the empirical formula CH2O and molar mass of 180.18g?

A)CH2O
B)C2H4O2
C)C4H8O4
D)C6H12O6
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
69
What is the molecular formula of a compound with the empirical formula C13H19O2 and molar mass of 414.64g?

A)CHO
B)C13H19O2
C)C26H38O4
D)C39H57O6
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
70
In which pair would both compounds have the same empirical formula?

A)H2O and H2O2
B)BaSO4 and BaSO3
C)FeO and Fe2O3
D)C6H12O6 and HC2H3O2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
71
What is the empirical formula of a compound that consists of 39.99% carbon,6.73% hydrogen,and 53.28% oxygen?

A)CHO
B)C2HO
C)CH2O
D)CHO2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
72
What is the molecular formula of a compound with the empirical formula CH2Cl and molar mass of 98.96g?

A)CH2Cl
B)C2H4Cl2
C)C3H6Cl3
D)C4H8Cl4
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
73
One atom of sulfur has a mass of

A)5.33 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g 10-23 g
B)32.06g
C)1.88 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g 1022 g
D)1.93 <strong>One atom of sulfur has a mass of</strong> A)5.33   10<sup>-23 </sup>g B)32.06g C)1.88   10<sup>22 </sup>g D)1.93   10<sup>25 </sup>g 1025 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
74
In which pair would both compounds have the same empirical formula?

A)C2H4 and C3H6
B)K2CrO4 and K2Cr2O7
C)NaHCO3 and Na2CO3
D)FeCl3 and FeCl2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
75
A 30.5 g sample of a compound contains 9.29 g of nitrogen and the rest is oxygen.What is the empirical formula of the compound?

A)N2O3
B)N2O
C)NO
D)NO2
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
76
What is the molecular formula of a compound with the empirical formula CHO2 and molar mass of 90.04g?

A)CHO2
B)C2H2O4
C)C3H3O6
D)C4H4O8
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
77
What is the empirical formula of a compound that consists of 2.424g magnesium,3.197g sulfur,and 6.380g oxygen?

A)MgSO
B)Mg2SO4
C)MgSO4
D)MgSO3
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
78
A compound consists of 4.50 g of nitrogen for every 7.71 g of oxygen and has the same empirical and molecular formula.Identify the compound.

A)NO2
B)N2O
C)N2O3
D)NO3
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
79
One atom of magnesium has a mass of

A)24.31g
B)4.04 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g 10-23 g
C)2.48 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g 1022 g
D)6.02 <strong>One atom of magnesium has a mass of</strong> A)24.31g B)4.04   10<sup>-23 </sup>g C)2.48   10<sup>22 </sup>g D)6.02   10<sup>23 </sup>g 1023 g
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
80
What is the molecular formula of a compound with the empirical formula CH2O and molar mass of 60.06g?

A)CH2O
B)C2H4O2
C)C3H6O3
D)C4H8O4
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.
فتح الحزمة
k this deck
locked card icon
فتح الحزمة
افتح القفل للوصول البطاقات البالغ عددها 111 في هذه المجموعة.