Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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The
density of acetic acid is 1.05 g/mL. What is the volume of 327 g of acetic acid? a. | 2.91
x 10-3
mL | b. | 3.21
x 10-3
mL | c. |
2.62 x 102
mL | d. |
3.11 x 102
mL | e. |
3.43 x 102
mL | | |
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2.
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The
density of liquid mercury is 13.5 g/cm3. What mass of mercury will fill a 0.500 L
container? a. |
3.70 x 10-2
g | b. | 6.75
g | c. | 27.0
g | d. | 37.0
g | e. |
6.75 x 103
g | | |
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3.
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You
can identify a metal by carefully determining its density. A 8.44 g piece of an unknown metal is 1.25
cm long, 2.50 cm wide, and 1.00 cm thick. What is a possible identity of the
element? a. | nickel, 8.90
g/cm3 | b. | aluminum, 2.70 g/cm3 | c. | titanium, 4.54
g/cm3 | d. | zirconium, 6.51 g/cm3 | e. | chromium, 7.20
g/cm3 | | |
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4.
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Thermostats are often set to 68 °F. What is this temperature in Celsius? a. | 2.0 x 101
°C | b. | 25 °C | c. | 38 °C | d. | 56 °C | e. | 7.0 x 102 °C | | |
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5.
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The
boiling point of liquid helium is 4 K. What is this temperature in Celsius? a. | -294
°C | b. | -277 °C | c. | -269 °C | d. | -255 °C | e. | -169 °C | | |
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6.
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Chemical reactions are often studied at 25 °C. What is this temperature in Fahrenheit? a. | 45 °F | b. | 57 °F | c. | 68 °F | d. | 77 °F | e. | 103 °F | | |
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7.
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Which
one of the following is not a SI base unit? a. | kilogram | b. | Fahrenheit | c. | Kelvin | d. | meter | e. | second | | |
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8.
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Which
of the following is the greatest mass? a. | 2.3
x 109 pg | b. | 1.5
x 108
ng | c. | 6.6
x 105
mg | d. | 8.4
x 102 mg | e. | 3.0
x 10-1
g | | |
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9.
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The
radius of a helium atom is 31 pm. What is the radius in nanometers? a. | 3.1
x 10-9
nm | b. | 3.1
x 10-6
nm | c. | 3.1
x 10-5
nm | d. | 3.1
x 10-3
nm | e. | 3.1
x 10-2
nm | | |
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10.
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The
dimensions of a box are 12 inch by 11 inch by 5.5 inch. Calculate the volume of the box in
cm3. There is 2.54 cm per inch. a. | 44 cm3 | b. | 2.8
x 102
cm3 | c. | 1.8
x 103 cm3 | d. | 4.7
x 103
cm3 | e. | 1.2
x 104 cm3 | | |
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11.
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If
the fuel efficiency of an automobile is 27 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. | 11
km/L | b. | 14
km/L | c. | 17
km/L | d. | 63
km/L | e. | 180
km/L | | |
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12.
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Which
method is correct for determining the liters of gas required to fill an automobile's 15 gallon tank?
(1.000 L = 1.057 quarts, 4 quarts = 1 gallon) a. | 15 gallons  | b. | 15 gallons  | c. | 15 gallons  | d. | 15 gallons  | e. | none of the above | | |
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13.
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An
electronic balance is used to determine that a sample has a mass of 25.7171 g. If the balance's
precision is ±0.1 mg, what is the correct number of significant figures for this
measurement?
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14.
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Convert 5.000 x 10-2 meters to millimeters and express the answer in
standard notation using the correct number of significant figures. a. | 50
mm | b. | 50.0
mm | c. | 50.00
mm | d. | 500
nm | e. | 5000
mm | | |
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15.
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What
is the correct answer to the following expression: (72.61 - 68.59) x 18.76? Carry
out the subtraction operation first. a. | 7
x 101 | b. | 75 | c. | 75.4 | d. | 74.542 | e. | 75.5415 | | |
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16.
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What
is the correct answer to the following expression: (18 + 95) x 0.077351? Carry
out the addition operation first. a. | 8.7 | b. | 8.74 | c. | 8.741 | d. | 8.7407 | e. | 8.74066 | | |
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17.
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What
is the correct answer to the following expression: 2.97 x 10-5 + 6.13 x
10-3? a. | 6.1
x
10-3 | b. | 6.16
x 10-3 | c. |
6.160 x
10-3 | d. | 6.1597
x 10-3 | e. |
6.15970 x
10-5 | | |
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18.
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When
24 copper pennies are submerged in water, the pennies displace 8.26 cm3 of water. If the
combined mass of the pennies is 73.86 g, what is the density of copper? a. | 0.112
g/cm3 | b. | 1.34 g/cm3 | c. | 8.94
g/cm3 | d. | 32.8 g/cm3 | e. | 107
g/cm3 | | |
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19.
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A
gallon (3.78 L) of latex paint can cover 385 ft2 of the surface of a wall. What is the
average thickness of one coat of paint (in micrometers)? a. | 0.781
mm | b. | 3.22 mm | c. | 9.82 mm | d. | 32.2 mm | e. | 106 mm | | |
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20.
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At 25
°C, the density
of oxygen in air is 0.275 g/L. What volume is occupied by 25 kg of oxygen at 25 °C? a. | 1.1
x 10-5
L | b. | 6.9
L | c. | 2.8
x 102
L | d. | 6.9
x 103
L | e. | 9.1
x 104
L | | |
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