Deck 1: Matter and Measurements

Question 1

If the temperature of a beaker of water is 65.0°F,what is its temperature in Celsius? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

A) 4.11°C
B) 18.3°C
C) 36.1°C
D) 59.4°C
E) 68.1°C

Answer 1

18.3°C

Question 2

All of the following statements are false EXCEPT

A) tin (Sn)is a homogeneous mixture of sulfur (S)and nitrogen (N).
B) table salt is a homogeneous mixture of sodium metal and chlorine gas.
C) the air trapped in a bicycle tire is a homogeneous mixture.
D) sugar dissolves completely in water to give a heterogeneous mixture.
E) water (H₂O)is a homogeneous mixture containing hydrogen and oxygen.

Answer 2

the air trapped in a bicycle tire is a homogeneous mixture.

Question 3

Many experiments are conducted at 298 K.What is this temperature in Celsius?

A) 0°C
B) 25°C
C) 55°C
D) 273°C
E) 298°C

Answer 3

25°C

Question 4

Sugar is a compound that dissolves readily in water.Which method is best for separating a mixture of sugar and water?

A) distillation
B) light absorption
C) electrolysis
D) gas-liquid chromatography
E) filtration

Question 5

Which method is best for removing the pulp from orange juice?

A) distillation
B) light absorption
C) electrolysis
D) gas-liquid chromatography
E) filtration

Question 6

Which of the following may be used to separate water into hydrogen and oxygen?

A) Filtration
B) Electrolysis
C) Distillation
D) Chromatography
E) Freezing

Question 7

Which one of the following substances is classified as a chemical compound?

A) He
B) S₈
C) Na
D) NO
E) N₂

Question 8

Which of the following is the largest volume?

A) 5.0 × 10² cm³
B) 5.0 × 10-⁴ L
C) 5.0 × 10³ mL
D) 5.0 × 10-¹ L
E) 5.0 × 10⁵ μL

Question 9

The radius of a potassium atom is 0.227 nm.What is the radius in millimeters?

A) 2.27 × 10^-9 mm
B) 2.27 × 10^-8 mm
C) 2.27 × 10^-7 mm
D) 2.27 × 10^-6 mm
E) 2.27 × 10^-4 mm

Question 10

Which term best describes rocks,such as granite or marble?

A) element
B) compound
C) distillation
D) homogeneous mixture
E) heterogeneous mixture

Question 11

Which method is correct for converting kelvin to Celsius?

A) $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+32$
B) $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\left(\frac{9^{\circ} \mathrm{C}}{5 \mathrm{~K}}\right) \mathrm{T}(\mathrm{K})+273.15$
C) $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{5^{\circ} \mathrm{C}}{9 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$
D) $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})-273.15)$
E) $\mathrm{T}\left({ }^{\circ} \mathrm{C}\right)=\frac{1^{\circ} \mathrm{C}}{1 \mathrm{~K}}(\mathrm{~T}(\mathrm{~K})+273.15)$

Question 12

Which one of the following is most likely to be a heterogeneous mixture?

A) vinegar (a mixture of acetic acid and water)
B) blood
C) antifreeze (a mixture of water and ethylene glycol)
D) sodium chloride (table salt)dissolved in water
E) the air trapped inside a car tire

Question 13

Convert 8.900× 10^-8 meters to nanometers and express the answer in standard notation using the correct number of significant figures.

A) 89 nm
B) 89.0 nm
C) 89.00 nm
D) 8.90 nm
E) 0.8900 nm

Question 14

The boiling point for liquid oxygen is 90.0 K.What is the boiling point in Fahrenheit?

A) −361.4°F
B) −329.4°F
C) −297.8°F
D) −183.0°F
E) −151.0°F

Question 15

Which term best describes liquid mercury at room temperature?

A) gas
B) element
C) compound
D) homogeneous mixture
E) heterogeneous mixture

Question 16

Water freezes at 0.0°C.What temperature does this correspond to in kelvin?

A) 173.2 K
B) 200.2 K
C) 273.2 K
D) 300.2 K
E) 373.2 K

Question 17

Express 0.00720 in exponential notation.

A) 7.20 × 10³
B) 7.2 × 10^-3
C) 7.20 × 10^-3
D) 7.2 × 10³
E) 7.2000 × 10-³

Question 18

The boiling point of ammonia is -33.3°C.What is this temperature in kelvin?

A) -306.5 K
B) -33.3 K
C) 239.9 K
D) 306.5 K
E) 331.5 K

Question 19

Which of the following is the smallest mass?

A) 1.5 × 10⁸ pg
B) 1.5 × 10⁶ ng
C) 1.5 × 10³ μg
D) 1.5 × 10^-1 mg
E) 1.5 × 10^-5 g

Question 20

If the outdoor temperature is 17.0°C,what is the temperature in Fahrenheit? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

A) −1.40°F
B) 30.6°F
C) 41.4°F
D) 62.6°F
E) 74.6°F

Question 21

An extensive property is

A) used to identify substances.
B) independent of amount.
C) related to density.
D) dependent upon amount.
E) observed throughout a substance.

Question 22

All of the following are examples of chemical change EXCEPT

A) the fermentation of wine.
B) the tarnishing of silver.
C) the condensation of steam.
D) the combustion of butane gas.
E) the rusting of iron.

Question 23

Round the answer to the following problem to the correct number of significant figures. (14.0186 × 0.00458)+ (15.0032 × 0.99542)= 14.99869

A) 15.0
B) 15.00
C) 14.999
D) 14.9987
E) 14.99869

Question 24

An intensive property of a substance is

A) independent of the amount present.
B) dependent on its volume,but not its mass.
C) not affected by its temperature.
D) dependent only on its temperature.
E) dependent only on its mass and volume.

Question 25

How many significant figures are in the following volume: 5.00 × 10⁴ mL?

A) 1
B) 2
C) 3
D) 4
E) 5

Question 26

What is the correct answer to the expression below? 1.472 × 10−⁷ + 4.32 × 10−⁹ =

A) 2 × 10−⁷
B) 1.5 × 10−⁷
C) 1.52 × 10−⁷
D) 1.515 × 10−⁷
E) 1.5152 × 10−⁷

Question 27

What is the correct answer to the following expression?
7.4576 × 10^-2+ 4.11 × 10^-5 + 6 × 10^-4

A) 7. × 10^-2
B) 7.5 × 10^-2
C) 7.52 × 10^-2
D) 7.522 × 10^-2
E) 7.5217 × 10^-2

Question 28

The volume of a carbon atom is 1.9 × 10^-30 m³.What is the radius of the atom in picometers? The volume of a sphere is (4/3)πr³.

A) 77 pm
B) 520 pm
C) 770 pm
D) 3.0 × 10² pm
E) 52 pm

Question 29

If the density of nitrogen in air is 0.87 g/L,what mass (in kg)of nitrogen is contained in a room with dimensions of 4.0 m × 3.5 m × 2.4 m?

A) 29 kg
B) 39 kg
C) 2.6 × 10^-2 kg
D) 2.9 × 10⁴ kg
E) 26 kg

Question 30

525 mL of water at 25°C (density = 0.997 g/mL)is placed in a container.The water is then cooled to form ice at −10°C (density = 0.917 g/mL).What is the mass and volume of the ice?

A) 523 g and 525 mL
B) 523 g and 571 mL
C) 527 g and 525 mL
D) 527 g and 571 mL
E) not enough information given to solve the problem

Question 31

What is the correct answer to the following expression: (205.18 - 197.3)÷ 6.226? Carry out the subtraction operation first.

A) 1
B) 1.3
C) 1.27
D) 1.266
E) 1.2657

Question 32

Which one of the following statements is not a comparison of physical properties?

A) Mercury and gallium are both liquids at 50°C.
B) Oxygen is more soluble in water than helium.
C) The density of gold is greater than the density of silver.
D) Oxygen and nitrogen are both liquids at -200°C.
E) Calcium dissolves more quickly than iron in acids.

Question 33

The dimensions of a box are 1.2 feet by 0.50 feet by 0.75 feet.Calculate the volume of the box in cubic centimeters.(2.54 cm = 1.00 inch,12.0 inches = 1.00 foot)

A) 14 cm³
B) 47 cm³
C) 306 cm³
D) 418 cm³
E) 1.3 × 10⁴ cm³

Question 34

A standard sheet of paper is 8.5 × 11 inches.What is the surface area,in cm²,of one side of a sheet of paper? (2.54 cm = 1.00 inch)

A) 14 cm²
B) 37 cm²
C) 94 cm²
D) 240 cm²
E) 6.0 × 10² cm²

Question 35

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−¹⁰ m).If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?

A) 1.43 × 10−¹³ mm
B) 1.43 × 10−⁷ mm
C) 0.143 mm
D) 14.3 mm
E) 143 mm

Question 36

If the fuel efficiency of an automobile is 32 miles per gallon,what is its fuel efficiency in kilometers per liter? (1 km = 0.621 mile,1.000 L = 1.057 quarts,4 quarts = 1 gallon)

A) 5.3 km/L
B) 14 km/L
C) 20 km/L
D) 75 km/L
E) 2.0 × 10² km/L

Question 37

A solid with a mass of 19.3 g is added to a graduated cylinder filled with water to the 25.0 mL mark.After the solid sinks to the bottom,the water level is at 35.8 mL.What is the density of the solid?

A) 0.539 g/mL
B) 0.560 g/mL
C) 1.79 g/mL
D) 2.19 g/mL
E) 8.50 g/mL

Question 38

How many miles are covered in a 15 km race? (1 mile = 5280 feet,12 inches = 1 foot,1 inch = 2.54 cm)

A) 7.1 mile
B) 9.3 mile
C) 11 mile
D) 15 mile
E) 26 mile

Question 39

How many significant figures are in the following mass: 0.00047800 kg?

A) 3
B) 5
C) 6
D) 8
E) 9

Question 40

All of the following are examples of an intensive property EXCEPT

A) solubility.
B) boiling point.
C) electrical conductivity of an element.
D) density.
E) both boiling point and density.

Question 41

At 0°C,35.7 g of sodium chloride (NaCl)will dissolve in 1.00 × 10² mL of water.What mass of sodium chloride will dissolve in 7.75 L of water (at 0°C)?

A) 4.61 g
B) 4.61 × 10¹ g
C) 7.75 × 10¹ g
D) 2.17 × 10² g
E) 2.77 × 10³ g

Question 42

A barometer is filled with a cylindrical column of mercury that is 76.0 cm high and 1.000 cm in diameter.If the density of mercury is 13.53 g/cm³,what is the mass of mercury in the column?

A) 0.227 g
B) 4.41 g
C) 808 g
D) 1.03 × 10³ g
E) 3.23 × 10³ g

Question 43

Calcium carbonate,or limestone,is relatively insoluble in water.At 25°C,only 5.8 mg will dissolve in 1.0 liter of water.What volume of water is needed to dissolve 5.0 g of calcium carbonate?

A) 4.6 × 10^-3 L
B) 3.0 × 10^-2 L
C) 1.4 × 10² L
D) 3.4 × 10² L
E) 8.6 × 10² L

Question 44

At what point is the temperature in °C twice that of the temperature in °F?

A) −40.0°C
B) −32.4°C
C) −24.6°C
D) −16.2°C
E) −8.88°C