Chapter 1 2 what is the surface area of the earth expressed

A)

10–12 g.

B)

10–8 g.

C)

10–6 g.

D)

10–9 g.

E)

10–10 g.

65. How many 150-mg aspirin tablets can be made from 15.0 kg of aspirin?

A)

10,000,000

B)

1,000,000

C)

1000

D)

10,000

E)

100,000

66. Which of the following sets of units is not in the order of increasing size?

A)

cPa < dPa < kPa

B)

L < dL < L

C)

ns < ms < s

D)

pm < mm < nm

E)

g < mg < cg

67. The mass of 59 kg equals

A)

590 g.

B)

5900 g.

5.9  104 g.

D)

0.059 g.

E)

0.59 g.

68. 6.6 seconds contain this many picoseconds.

A)

6.6  109

B)

6.6  1012

Test Bank General Chemistry, 10th edition 19

C)

6.6  10–9

D)

6.6  10–12

E)

6.6  1015

69. 8.86 seconds contain this many nanoseconds.

A)

8.86  109

B)

8.86  1010

C)

8.86  1012

D)

8.86  108

E)

8.86  107

70. The boiling point of chlorine is 172 K. This temperature corresponds to

A)

–82°C.

B)

101°C.

C)

172°C.

D)

–172°C.

E)

–101°C.

71. The melting point of nitrogen is 63 K. What is this temperature in degrees Celsius?

A)

63°C

B)

–336°C

C)

–63°C

D)

–210.°C

E)

483°C

72. The melting point of a solid is 39°F. This corresponds to

A)

295 K.

B)

312 K.

C)

286 K.

D)

277 K.

Test Bank General Chemistry, 10th edition 20

E)

312 K.

73. A particular liquid boils at –287°F. What is its boiling point on the Kelvin scale?

A)

131 K

B)

114 K

C)

96 K

D)

146 K

E)

214 K

74. The melting point and the normal boiling point of water can be used to calibrate

thermometers. What are these respective temperatures in kelvins?

A)

273 and 373

B)

32 and 212

C)

100 and 273

D)

0 and 100

E)

0 and 373

75. The melting point of a certain solid is –25°C. This corresponds to

A)

13°F.

B)

–32°F.

C)

–13°F.

D)

–103°F.

E)

18°F.

76. The melting point of a particular solid is 2923 K. This corresponds to

A)

4802°F.

B)

3196°C.

C)

2589°C.

D)

4738°F.

E)

1504°F.

77. The Rankine (oRa) temperature scale is often used in engineering. Like the Kelvin scale, the

Rankine scale is an absolute temperature scale; but the size of a Rankine degree is the same

as the size of a Fahrenheit degree. Thus, 0 K = 0oRa and 0oF = 459.67oRa. What is the

temperature 12.9oC expressed on the Rankine scale?

A)

514.9oRa

B)

286.1oRa

C)

12.9oRa

D)

23.2oRa

E)

296.4oRa

78. The Rankine (oRa) temperature scale is often used in engineering. Like the Kelvin scale, the

Rankine scale is an absolute temperature scale; but the size of a Rankine degree is the same

as the size of a Fahrenheit degree. Thus, 0 K = 0oRa and 0oF = 459.67oRa. What is the

temperature 225.3oRa expressed on the Fahrenheit scale?

A)

685.0oF

B)

865.2oF

C)

498.5oF

D)

225.3oF

E)

–234.4oF

79. Which of the following is an incorrect statement regarding derived SI units?

A)

The SI unit of volume is derived from the SI unit of length.

B)

One milliliter is equivalent to one cubic centimeter.

C)

A derived SI unit may also contain a non-SI unit.

D)

Density is a derived SI unit.

E)

The SI unit of energy (joule) is equivalent to kgm2s-2.

80. What is the volume of a cube that has an edge length of 0.019 m?

A)

6.9  10–3 m3

B)

6.9  10–3 km3

Test Bank General Chemistry, 10th edition 22

C)

6.9  10–3 cm3

D)

6.9  10–3 mm3

E)

6.9 cm3

81. The specific heat is the amount of heat required to raise the temperature of one gram of a

substance one degree Celsius. A 75.0-g sample of an unknown substance absorbed 2.93 kJ

of energy as it changed from a temperature of 23.2°C to 95.4°C. What is the specific heat of

the unknown substance?

A)

541 kJ/(g °C)

B)

0.541 J/(g °C)

C)

5.41 kJ/(g °C)

D)

54.1 kJ/(g °C)

E)

0.541 kJ/(g °C)

82. A particular sheet of paper measures inches. What is the surface area of one side of

the paper in cm2? (2.54 cm = 1 in exactly)

A)

1.1  102 cm2

B)

4.4  101 cm2

C)

2.8  102 cm2

D)

1.7  101 cm2

E)

6.8 cm2

83. A piece of metal (mass = 17.676 g) is placed in 11.00 mL of chloroform (d = 1.498 g/mL) in

a 25-mL graduated cylinder. The chloroform level increases to 15.46 mL. The best value for

density of this metal from these data is

A)

1.14 g/mL.

B)

2.65 g/mL.

C)

3.963 g/mL.

D)

5.94 g/mL.

E)

3.96 g/mL.

84. An irregularly shaped metal was weighed by the following difference:

Test Bank General Chemistry, 10th edition 23

Watch glass + metal = 56.7813 g

Watch glass = 35.4725 g

The volume of the metal was determined by placing the metal in a graduated cylinder that

had water in it and measuring the volume difference.

Graduated cylinder + water + metal = 14.15 mL

Graduated cylinder + water = 11.25 mL

The density should be reported as

A)

7.348 g/mL.

B)

7.35 g/mL.

C)

7.4 g/mL.

D)

7.3 g/mL.

E)

7.3479 g/mL.

85. In addition to mass, which property of matter must be known to calculate its volume?

A)

specific heat

B)

temperature

C)

molecular weight

D)

density

E)

pressure

86. A 0.412-kg sample of methylene chloride has a density of 1.326 g/cm3. Calculate its

volume.

A)

3220 cm3

B)

0.000311 cm3

C)

412 cm3

D)

311 cm3

E)

546 cm3

87. Calculate the mass of gold that occupies the same volume as 62.9 g of cobalt. The density of

cobalt is 8.90 g/cm3 and the density of gold is 19.30 g/cm3.

A)

2.73 g

B)

136 g

C)

1.08  104 g

D)

0.0345 g

E)

0.366 g

88. Four cubes of equal mass are made of lead (density = 11.3 g/cm3), silver (10.5 g/cm3), iron

(7.90 g/cm3), and aluminum (2.70 g/cm3). Which cube has the longest edge?

A)

lead

B)

iron

C)

silver

D)

all four cubes have the same length edge

E)

aluminum

89. What volume of a pure liquid (density 0.710 g/mL) has a mass of 0.290 kg?

A)

4.08  102 mL

B)

2.45  10–3 mL

C)

2.06  10–1 mL

D)

2.45 mL

E)

4.08  10–1 mL

90. A thin sheet of platinum metal that is 2.68 cm by 6.16 cm has a mass of 48.8 g and a

thickness of 1.40 mm. What is the density of platinum?

A)

21.1 g/cm3

B)

2.11 g/cm3

C)

1.13  103 g/cm3

D)

0.0474 g/cm3

E)

0.474 g/cm3

91. What length of a cylindrical piece of tungsten wire having a radius of 2.35 mm has a mass

of 92.3 g? The density of tungsten is 19.25 g/cm3.

A)

2.76  10–3 m

B)

3.08  102 m

C)

2.76  10–1 m

D)

3.62  10–2 m

E)

3.62  10–4 m

92. What is the mass of NH3 in a 80.0-cm3 sample that has a density of 0.92 g/cm3 and consists

of 20% (by mass) NH3?

A)

15 g

B)

20 g

C)

45 g

D)

74 g

E)

25 g

93. What is the mass of H2SO4 in a 47.5-cm3 sample of sulfuric acid that has a density of

1.33 g/cm3 and consists of 45.6% H2SO4?

A)

139 g

B)

63.2 g

C)

16.3 g

D)

1.28 g

E)

28.8 g

94. A 4.06 cm3 sample of solid sodium metal has a density of 0.968 g/cm3. What volume does

this sample of sodium occupy in its liquid state? The density of liquid sodium is 0.927

g/cm3.

A)

4.24 cm3

B)

3.89 cm3

C)

4.52 cm3

D)

3.64 cm3

E)

0.257 cm3

95. How many feet (ft) are contained in 0.399 km, given that 1 mi = 1.609 km and 5280 ft = 1

mi (exact).

Test Bank General Chemistry, 10th edition 26

A)

1310 ft

B)

1.21 10−4

ft

C)

4.692 10−5

ft

D)

3390 ft

E)

7.64 10−4

ft

96. Convert 34.59 cm3 to cubic inches (in3) given that 1 inch = 2.54 cm (exact).

A)

2.111 in3

B)

13.62 in3

C)

87.86 in3

D)

566.8 in3

E)

0.4738 in3

97. Which response has the correct number of significant figures and units for the following

mathematical operation?

A)

2.201  10–5 J/cal

B)

2  10–5 kcal

C)

2.201  10–5 kcal

D)

2.20  10–5 kcal

E)

2.2  10–5 kcal

98. The average speed of oxygen molecules at 690°C is 1.60  105 cm/s. Which of the following

calculations would convert this speed to units of miles per hour?

A)

B)

C)

D)

E)

99. The distance from Austin, Texas, to Lincoln, Nebraska, is 822 miles by car. Which of the

following series of calculations will yield this distance in units of kilometers?

(1 in = 2.54 cm (exact), 1 mi = 5280 ft (exact), 1 ft = 12 in (exact))

A)

B)

C)

D)

E)

100. A car averages 27.5 miles per gallon of gasoline. How many liters of gasoline will be

needed for a trip of 489 km? Some conversion factors that may be helpful are the following:

1 qt = 0.946 L

1 mile = 1.609 km

4 qt = 1 gal (exact)

1 ft = 12 in (exact)

A)

4.18  101 L

B)

5.72  103 L

C)

2.21  103 L

D)

1.08  102 L

E)

3.16  104 L

101. Which of the following sequence of conversions will yield the correct number of scruples in

14.3 lb? Some equivalents that may be helpful are given below:

Test Bank General Chemistry, 10th edition 28

1.00 scruple = 20.0 grains

1.00 g = 15.4 grains

1.00 grain = 0.0648 g

1.00 lb = 453.6 g

1.00 kg = 2.205 lb

A)

B)

C)

D)

E)

102. 6.7 kilogram(s) contains this many grams:

A)

6.7  102

B)

0.67

C)

6.7  10–3

D)

67

E)

6.7  103

103. Convert 6424.2 g to mg.

A)

64.242 mg

B)

642.42 mg

C)

6.4242  106 mg

D)

6.4242  103 mg

E)

6.4242 mg

104. The enthalpy of combustion of benzoic acid is –26.4 kJ/g. What is the enthalpy of

combustion expressed in joules per kilogram?

A)

–2.64  103 J/kg

B)

–2.64  104 J/kg

C)

–2.64  101 J/kg

D)

–2.64  107 J/kg

E)

–2.64  1010 J/kg

105. The enthalpy of combustion of n-octane, C8H18, is –4.79  107 J/kg. What is the enthalpy of

combustion expressed in kJ/g?

A)

–4.79  1010 kJ/g

B)

–4.79  107 kJ/g

C)

–4.79  103 kJ/g

D)

–4.79  101 kJ/g

E)

–4.79  104 kJ/g

106. How many milligrams of ammonium nitrate are equivalent to 3.77  10–5 kg of ammonium

nitrate?

A)

3.77  1010

B)

3.77  104

C)

3.77  107

D)

3.77  10–7

E)

3.77  101

107. The density of a particular solid is 5.81 g/cm3 at 25°C. What is its density in kilograms per

cubic meter (kg/m3)?

A)

5.81  1010

B)

5.81  101

C)

5.81  10–2

D)

5.81  103

E)

5.81  107

108. Express the volume 166.7 cm3 in liters.

A)

1.667 L

B)

0.01667 L

C)

0.1667 L

D)

16.67 L

E)

166.7 L

109. How many cubic micrometers equal one cubic meter?

A)

104

B)

10–18

C)

106

D)

1018

E)

10–6

110. A certain substance makes up 2.2  10–4 percent by mass of a normal healthy human being.

How many grams of that substance would be found in the body of a person weighing

160 lb? (1.0 kg = 2.2 lb)

A)

1.6 g

B)

0.16 g

C)

350 g

D)

160 g

E)

0.8 g

111. How many liters are in 14.7 fluid ounces of a soft drink? (1 fl oz = 28.35 mL)

A)

5.19  10–4 L

B)

5.19  102 L

C)

4.17  105 L

D)

4.17  102 L

E)

0.417 L

112. How many joules are there in 9.55 kcal? (1 calorie = 4.184 J)

A)

4.00  10–2 J

B)

4.00  104 J

C)

40 J

D)

2.28  103 J

E)

2.28 J

113. A hogshead is an old English unit of volume equal to 238.48 L. What is the volume of a

cube with an edge length of 49.7 m expressed in units of hogshead? (1000 L = 1 m3)

A)

5.15  105 hogshead

B)

5.15  102 hogshead

C)

5.15  10–1 hogshead

D)

2.93  1010 hogshead

E)

2.93  104 hogshead

114. A barn is an atomic unit of area equal to 10–28 m2. What is the surface area of the Earth

expressed in units of barn? Assume the Earth is a sphere with a radius of 6380 km. (The

surface area of a sphere is 4r2.)

A)

5.12  1042 barn

B)

5.12  10–20 barn

C)

5.12  1036 barn

D)

5.12  10–14 barn

E)

5.12  1030 barn

115. A lightminute is a unit of length equal to the distance that light travels in 1 minute. What is

1 lightminute expressed in units of meters? The speed of light is 3.00  108 m/s.

A)

5.00  106 m

B)

1.80  1010 m

C)

3.00  108 m

D)

2.00  10–7 m

E)

5.56  10–11 m

116. The SI unit for the diffusion coefficient is m2/s, but older texts sometimes report diffusion

coefficients in units of in2/min. What is the value of a diffusion coefficient of 25.5 in2/min

expressed in SI units? (2.54 cm = 1 in exactly)

A)

1.08  10–2 m2/s

B)

3.89  105 m2/s

C)

16.7 m2/s

D)

6.59  102 m2/s

E)

2.74  10–4 m2/s

117. How many rundlets are there in 237 in3? Some conversion factors that may be useful are

given below:

1.00 barrel = 42.0 gal

1.00 gal = 231 in3

1.00 gal = 3.78 L

1.00 rundlet = 6.81  104 mL

1.00 L = 1000.0 mL

1.00 barrel = 4.00 firkins

A)

0.569

B)

14,100,000

C)

26,400

D)

986,000

E)

0.0569

118. A barleycorn is an English unit of length equal to 1/3 of an inch. What is the height of the

Sears Tower (527 m) expressed in barleycorn? (2.54 cm = 1 in)

A)

4.02  105 barleycorn

B)

6.92  103 barleycorn

C)

6.22  104 barleycorn

D)

4.46  104 barleycorn

E)

6.92  10–1 barleycorn

119. A sample of milk is found to have arsenic at a concentration of 3.57 g/L. What is the

concentration in ounces per gallon?

1 qt = 946.4 mL

1 gal = 4 qt

16 oz = 1 lb

1 lb = 0.4536 kg

A)

2.68  103 oz/gal

B)

4.77  10–7 oz/gal

C)

2.46 oz/gal

D)

3.84  10–4 oz/gal

E)

3.32  10–8 oz/gal

120. The daily dietary energy requirement for an adult is 2.00  103 kcal (1 cal = 4.184 J). This is

equivalent to

A)

8.37  103 J.

B)

8.37  103 kJ.

C)

478 kJ.

D)

2.00  103 kJ.

E)

47.8  104 kJ.