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Chemistry
Quiz 1: Fundamental Concepts of Chemistry
Path 4
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Question 61
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-What is the temperature of liquid nitrogen in ˚F, if the nitrogen is currently at -195.8 ˚C?
Question 62
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-A flask with a mass of 160.342 g is filled with 22° C water. The mass of the flask filled with water is found to be 310.5 g. Given that the density of water at 22°C is 0.99780 g/cm
3
, what is the volume of the flask?
Question 63
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-Fill in the missing quantity:
Question 64
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-When you fill up your car in a country in Europe, your credit card is charged $25.45 for 32.3 L of gasoline. What is the price of gasoline in dollars per gallon?
Question 65
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-Rhodium metal recently was selling for $105.15 per gram. What is the price for a pound of rhodium metal in dollars?
Question 66
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-It has been said that 3.0 kg of plutonium is enough to make an atomic bomb. If you were working security at an airport, just how large of a metallic object would you be looking for? That is, determine the diameter (in cm) of a sphere of plutonium that has a mass of 3.0 kg. (the density of plutonium is 19.84 g/cm
3
)
Question 67
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-You are asked to administer 4.9 g of an injectable solution which contains 0.23 % of a lifesaving drug by mass. The syringe has graduations of 0.1 mL. If the density of the solution is 1.13 g/mL, how many mL should you inject?
Question 68
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-Ethyl ether has a density of 0.7138 g/ml. How many litres will be needed to obtain 500 grams of ethyl ether for a reaction?
Question 69
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-The density of mercury is 13.6 g/ml and the density of water is 1.00 g/ml. How many meters high would a column of water need to be, to be equal in mass to a column of mercury 750 mm high? (assume the columns of liquid have the same diameter)
Question 70
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-What is the difference in mass between 1.000 x 10
15
protons and the same number of neutrons? What is the electrical charge (in coulombs) carried by this number of protons?
Question 71
Short Answer
Use the following information for Questions 3.785 L = 1 gallon; 2.2 lbs = 1 kg; V = EQ \F(4,3) πr
3
;
1 in = 2.54 cm; 1 mile = 1.609 km; 12 in = 1 ft; 1 yard = 3 ft; 1 gal = 3.785 L; ˚C = 5/9 (˚F - 32)
-What is the mass of 1.000 x 10
15
electrons? What is the electrical charge (in coulombs) carried by this number of electrons?
Question 72
Short Answer
Use the following information for Questions . 1 mole = 6.022 x10
23
particles -Which would have a greater mass: 1.25 mole sample of lead or 11.25 mole sample of aluminum?
Question 73
Short Answer
Use the following information for Questions . 1 mole = 6.022 x10
23
particles -Which would have a greater mass: a 1.75 mole sample of tin or a 5.25 mole sample of aluminum?
Question 74
Short Answer
Use the following information for Questions . 1 mole = 6.022 x10
23
particles -Which would have a greater mass: a 2.37 mole sample of potassium or a 3.72 mole sample of magnesium?
Question 75
Short Answer
Use the following information for Questions . 1 mole = 6.022 x10
23
particles -Naturally occurring platinum has several different isotopes,
190
Pt (0.0127%; 189.960 amu);
192
Pt (0.78 %; 191.9614 amu);
194
Pt (32.9%; 193.9628 amu),
195
Pt (33.8 %; 194.9648 amu);
196
Pt (25.3 %; 195.9650 amu) and
198
Pt (7.21 %; 197.9675 amu). What is the molar mass of naturally occurring platinum?
Question 76
Short Answer
Use the following information for Questions . 1 mole = 6.022 x10
23
particles -The density of a particular 300 cm
3
graphite sample is 2.16 g cm
-3
; how many atoms are contained in the sample?