MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
1) When the prefix milli is used in the metric or SI system, a fundamental
1) _______
unit of measurement is multiplied by what factor?
A)
B)
C)
D)
E)
2) When the prefix centi is used in the metric system, a fundamental unit of
measurement is multiplied by what factor?
A)
B)
C)
D)
E)
2) _______
3) How many meters are there in one kilometer?
A)
B)
C)
D)
3) _______
4) How long is 1 cm?
A) 100 mm
E)
4) _______
B) 1 mm
C) 10 mm
D) 0.01 mm
5) The abbreviation for the metric unit used to measure mass is
A) K
B) g
C) L
D) g/cm3
5) _______
E) m
6) A student weighed a solid sample. The units for this measurement are
most likely to be recorded as
A) meters.
B) Kelvins.
C) grams.
D) grams per cubic centimeter.
E) liters.
6) _______
7) The amount of matter in an object is its
A) density.
B) specific gravity.
C) weight.
D) mass.
E) volume.
7) _______
8) The measurement most likely to describe the amount of pain reliever in a
headache tablet is
A) 1.5 kg.
B) 325 mg/mL.
C) 1.00 mL.
D) 500 mg.
E) 0.25 L.
8) _______
9) Which value is closest to the mass of a 2-pound box of laundry
detergent?
A) 2.0 × 10-4 cg
9) _______
B) 4.5 × 103 ng
C) 200 g
D) 9 × 109 mg
E) 1 kg
10) Which measurement represents the largest quantity?
A) 4730 ng
B) 4.73 × 10-4 g
10) ______
C) 4.73 × 103 μg
D) 47.3 mg
E) 4.73 × 10-6 kg
11) Which measurement represents the smallest quantity?
A) 2.95 × 103 μg
11) ______
B) 29.5 mg
C) 2950 ng
D) 2.95 × 10-6 kg
E) 2.95 × 10-4 g
12) The metric unit used to measure volume is the
A) Kelvin.
B) gram.
C) meter.
D) gram per cubic centimeter.
E) liter.
12) ______
13) Which of the following represents the largest unit?
A) deciliter
B) milliliter
C) kiloliter
D) dekaliter
E) megaliter
13) ______
14) The units most likely to be used to measure the amount of alcohol to be
added to a small test tube are
A) mL.
B) cm.
C) g.
D) L.
E) kg.
14) ______
15) In an introductory laboratory exercise, a student was asked to measure
the volume of soda in a partially filled can in metric units. Which value
below is most likely to be correct?
A) 6.0 x
nL
15) ______
B)
C)
D)
E)
2.5 L
325 mL
1.0 kL
550 μL
16) The SI unit for volume is ________ and the metric unit for volume is
________.
A) mL; cc
B) cc; L
C) m3; L
D) L; m3
E) m3; cm3
16) ______
17) Which value is closest to the amount of gasoline in a small car with a full
tank (which contains about 13 gallons)?
A) 3.5 × 102 dL
B)
C)
D)
E)
17) ______
450 mL
85 μL
50 L
12 kL
18) 125 cL is the same as all of these except
A) 125 cubic liter.
B) 1.25 liter.
C) 1250 milliliter.
D) 12.5 deciliter.
E) 125 centiliter.
18) ______
19) Which of the following measurements has three significant figures?
A) 1,207 g
B) 0.03750 g
C) 4.250 g
D) 0.0250 g
E) 0.006 g
19) ______
20) What is the numerical value of 1.2 × 1.222? Express your answer using
the correct number of significant figures.
A) 1.466
B) 1.4664
C) 1.47
D) 1.5
E) none of the above
20) ______
21) A laboratory technician reports that the mass of a growth removed from
a patient is 274.06 g. How many significant figures does this
measurement contain?
A) 3
B) 5
C) 2
D) 4
E) none of the above
21) ______
22) Which of the following numbers contains four significant figures?
A) 0.0230100
B) 0.23010
C) 23,011.0
D) 230,110
E) 0.002301
22) ______
23) Which of the following numbers contains five significant figures?
A) 49,100
B) 0.04910
C) 0.4910
D) 4.9100
23) ______
E) 4,910,000
24) What is the total length of two pieces of tubing which measure 4.5 cm
and 3.222 cm? Express the answer to the correct number of significant
figures.
A) 7.722 cm
B) 3.722 cm
C) 4.722 cm
D) 8 cm
E) 7.7 cm
24) ______
25) Find the difference between two masses measured as 123.6 grams and
115.972 grams. Express the answer to the correct number of significant
figures.
A) 7.63 grams
B) 7.6 grams
C) 8.0 grams
D) 7.628 grams
E) 8 grams
25) ______
26) What is the area of a piece of metal foil that measures 43.9 cm by 29.21
cm? Express the answer to the correct number of significant figures.
A) 1280
26) ______
B) 1282.32
C) 128
D) 1282.319
E) 1282.3
27) The numerical value for (5.6 × 104) ÷ (7.89 × 102) is equal to, with the
proper number of significant figures:
A) 7.098 × 101
B)
C)
D)
E)
27) ______
71.0
71
70.976
70.98
28)
28) ______
What is the numerical value of
the correct number of significant figures.
A) 1.23 ×
? Express your answer using
B)
C) 1.227 ×
D) 1 ×
E) 1.2 ×
29) The volume of a gas sample is recorded as 0.0970 L. How many
significant figures is this?
A) 3
29) ______
B)
C)
D)
E)
5
4
2
none because this is an exact number
30) What is the total length of two pieces of rubber tubing which are 7.69 cm
and 4.028 cm in length? Express this answer to the correct number of
significant figures.
A) 11.69 cm
B) 11.718 cm
C) 11.7 cm
D) 11.72 cm
E) 12 cm
30) ______
31) Which choice best describes the degree of uncertainty in the
measurement 16.30 g?
A) The uncertainty cannot be determined without additional
information.
B) The quantity is exact.
C) ±0.10 g
D) ±1.00 g
E) ±0.01 g
31) ______
32) Which choice best describes the degree of uncertainty in the
measurement 4.0032 g?
A) The uncertainty cannot be determined without additional
information.
B) The quantity is exact.
C) The measurement is between 3.99 and 4.01 g.
D) The measurement is between 4.002 and 4.004 g.
E) The measurement is between 4.0031 and 4.0033 g.
32) ______
33) The number 5.320 ×
A) 5.320.
B) 0.5320.
C) 0.005320.
D) 532.0.
E) 53.20.
33) ______
in conventional notation is
34) In scientific notation, the number 185,000,000 is
A) 185 ×
.
B) 1.85 ×
C) 1.85 ×
.
D) 1.85 ×
E) 185 ×
.
.
.
35) In scientific notation, the number 0.0046 is expressed as
A) 4.6 ×
.
B) 46 ×
C)
34) ______
.
35) ______
46 ×
.
D) 4.6 ×
E) 4.6 ×
36) What is 2.1 ×
A) 2,100,000
B) 0.00021
C) 210
D) 0.000021
E) 210,000
.
.
36) ______
written in decimal notation?
37) What is 0.0970 written in scientific notation?
A) 97 ×
37) ______
B) 9.70 ×
C) 0.97 ×
D) 97.0 ×
E) 970 ×
38) What is the numerical value of (2.1 ×
A) 8.4 ×
)(4.0 ×
)?
38) ______
B) 8.4 ×
C) 8.4 ×
D) 8.4
E) none of the above
39) What is the numerical value of (8.0 ×
A) 1.6 ×
)(2.0 ×
39) ______
)?
B) 16 ×
C) 16.0
D) 1.6 ×
E) 1.6 ×
40)
40) ______
What is the numerical value of
A) 1.25 ×
?
B) 1.25 ×
C) 1.25 ×
D) 1.25 ×
E) 0.125
41)
41) ______
What is the numerical value of
A) 1.2
B)
?
1.2 ×
C) 1.2 ×
D) 1.2 ×
E) 1.2 ×
42) How many centimeters are contained in 12.5 inches?
A) 5.10 cm
B) 492 cm
C) 31.8 cm
D) 4.92 cm
E) none of the above
42) ______
43) How many grams are contained in 1.20 pounds?
A) 545 g
B) 264 g
C) 1.20 g
D) 378 g
E) 2.2 g
43) ______
44) How many inches are contained in 25.4 cm?
A) 10.0 inches
B) 100 inches
C) 0.10 inches
D) 64.5 inches
E) 25.4 inches
44) ______
45) How many centimeters are there in one kilometer?
A)
cm
45) ______
B)
cm
C)
cm
D)
cm
E)
cm
46) An analysis showed a sample to contain 0.00471 grams of lead. How
many micrograms is this?
A) 0.471 μg
B) 4.71 ×
μg
C) 4.71 ×
D) 4.71 ×
μg
E) 4.71 ×
μg
μg
47) In a density determination, a student measured 11.46 mL of a liquid.
How many liters is this?
A) 1.146 L
B) 1.146 x
L
C) 0.01146 L
D) 0.1146 L
E) 11,460 L
46) ______
47) ______
48) The conversion factor used to convert 15.0 inches to cm is
A)
48) ______
B)
C)
D)
E)
49) The conversion factor used to convert 55.6 km to miles is
A)
49) ______
B)
C)
D)
E)
50) An extra-strength aspirin contains 0.500 g of aspirin. How many grains is
50) ______
this?
A) 7.72 grains
B) 3.24 × 104 grains
C) 32.4 grains
D) 65.3 grains
E) 13.0 grains
51) How many quarts are contained in 450. mL?
A) 2.10 quarts
B) 426 quarts
C) 475 quarts
D) 0.426 quart
E) 0.475 quarts
51) ______
52) How many pounds are contained in 84.0 kg?
A) 380 lb
B) 38.0 lb
C) 0.084 lb
D) 185 lb
E) 0.038 lb
52) ______
53) A sample of an experimental medication was calculated to contain 0.392
g of active drug. How many milligrams is this?
A) 0.0392 mg
B) 392 mg
53) ______
C) 3.92 ×
D) 3.92 ×
E) 3.92 ×
mg
mg
mg
54) How many ng are there in 5.2 mg?
A) 5.2 ×
ng
B) 5.2 ×
C) 1.9 ×
ng
D) 1.9 ×
E) 5.2 ×
ng
54) ______
ng
ng
55) The dosage of quinine when a 145-lb adult takes a 200.-mg tablet is
________ μg drug per kg of body weight.
A) 4.41 × 105
55) ______
B) 15.2
C) 1.38 × 106
D) 3.04 × 103
E) 1.60 × 103
56) An object weighs 37.4 kg. What does the object weigh in the English
system?
1 lb = 453.6 g
A) 0.0824 lb
B) 169.65 lb
C) 16,965 lb
D) 82.5 lb
56) ______
57) If gasoline sells for 95.4 cents per liter, what is its cost on a per gallon
basis?
1 L = 1.06 q
A) $3.60
B) $404.50
C) $3.82
D) $4.04
57) ______
SHORT ANSWER. Write the word or phrase that best completes each statement or answers
the question.
58) Is 25 kilometers per liter good gas mileage for a VW Rabbit
58) _____________
diesel? Hint: How do we measure mileage in the English
system?
59) If an automobile gets 24.5 miles to the gallon and the cost of
gasoline is $2.75 a gallon, how much will it cost to drive 975 km?
59) _____________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
60) 68°C is the same as
60) ______
A) 321 K.
B) 205 K.
C) 341 K.
D) 158 K.
E) 285 K.
61) What temperature is 325 K on the Celsius scale?
A) 126°C
61) ______
B)
C)
D)
E)
344°C
598°C
617°C
52°C
62) 95.0°F is the same as
A) 21°C.
B) 203°C.
C) 171°C.
D) 35°C.
E) 85°C.
62) ______
63) What temperature is -10.°C on the Fahrenheit scale?
A) -18°F
B) 26°F
C) -6°F
D) 263°F
E) 14°F
63) ______
64) What temperature is 75°F on the Kelvin scale?
A) 297 K
B) 24 K
C) 348 K
D) 43 K
E) 215 K
64) ______
65) What temperature do the Celsius and Fahrenheit scales read the same?
A) 25
B) -40
C) 100
D) -100
E) Never
65) ______
SHORT ANSWER. Write the word or phrase that best completes each statement or answers
the question.
66) Why is the number 32 (and not some other value) used in the
66) _____________
formula for converting between Celsius and Fahrenheit
temperatures?
67) Why is the number 1.8 (and not some other value) used in the
formula for converting between Celsius and Fahrenheit
temperatures?
67) _____________
68) Why is the number 273.15 (and not some other value) used in the
formula for converting between Celsius and Kelvin
temperatures?
68) _____________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
69) How many calories are released when 500 g of water cools from 95.0°C
69) ______
to 25.0°C?
A) 3.50 ×
cal
B) 35.0 cal
C) 4.75 ×
D) 70.0 cal
E) 1.25 ×
cal
cal
70) If 75.0 g of water at 30.0°C absorbs 900 calories, the new temperature will
be
70) ______
A)
B)
C)
D)
E)
105°C.
22.0°C.
160°C.
18.0°C
42.0°C.
71) What is the density of a 600 mL liquid sample that weighs 450 g?
A) 1.33 g/mL
B) 0.37 g/mL
C) 270 g/mL
D) 1050 g/mL
E) 0.75 g/mL
71) ______
72) Calculate the density of cyclohexane if a 50.0 g sample has a volume of
64.3 mL.
A) 14.3 g/mL
B) 0.778 g/mL
C) 0.322 g/mL
D) 114.3 g/mL
E) 1.29 g/mL
72) ______
73) A 35.0 mL sample of a liquid weighs 27.2 g. What is the density of the
liquid?
A) 62.2 g/mL
B) 7.80 g/mL
C) 0.952 g/mL
D) 0.777 g/mL
E) 1.29 g/mL
73) ______
74) What is the specific gravity of a liquid sample with a mass of 35.0 g and a
volume of 14.00 mL?
A) 21.0
B) 2.5
C) 2.50 g/mL
D) 14.0
E) 14.0 g/mL
74) ______
75) What is the volume of a gold nugget that weighs 2.20 kg? The density of
75) ______
gold is
A) 116
B) 8.60 ×
C) 11.6
D) 8.60
E) 0.116
76) What is the mass of 30.0 mL of a solution with a density of 1.60 g/mL?
A) 48.0 g
B) 53.3 g
C) 18.8 g
D) 31.6 g
76) ______
E) none of the above
77) A 2.36
sample of an unknown metal weighs 18.5 g. What is the
sample's density?
A) 7.84 g/
B) 0.127
/g
C) 0.784 g/
D) 15.75 g /
77) ______
SHORT ANSWER. Write the word or phrase that best completes each statement or answers
the question.
78) A gas at 25°C exactly fills a container previously determined to
78) _____________
3
3
have a volume of 1.05 × 10 cm . The container plus gas are
weighed and found to have a mass of 837.6 g. The container,
when emptied of all gas, has a mass of 836.2 g. What is the
density of the gas at 25°C?
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or
answers the question.
79) Which of the following statements is true of specific gravity?
79) ______
A) It has the units of g/
B) Specific gravity is unitless because it is the density of one substance
divided by the density of water.
C) Specific gravity is constant at any temperature.
D) Specific gravity is a measure of the reactivity index of a substance.
80) What is the specific heat of a metal if it takes 26.5 calories to raise the
temperature of a piece weighing 50.0 g by 5.00 Celsius degrees?
A) 0.106 cal/g °C
B) 133 cal/g °C
C) 250 cal/g °C
D) 6.63 cal/g °C
E) 1.89 cal/g °C
80) ______
81) What is the specific heat of a metal if it takes 48.4 calories to raise the
temperature of a 45.0 g sample by 5.0°C?
A) 225 cal/g °C
B) 242 cal/g °C
C) 0.186 cal/g °C
D) 0.215 cal/g °C
E) 5.34 cal/g °C
81) ______
SHORT ANSWER. Write the word or phrase that best completes each statement or answers
the question.
82) Explain how density can be used to determine the volume of
82) _____________
carbon tetrachloride (which is a liquid at room temperature)
needed to make a mixture using 37.2 of carbon tetrachloride.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
22)
23)
24)
25)
26)
27)
28)
29)
30)
31)
32)
33)
34)
35)
36)
37)
38)
39)
40)
41)
42)
43)
44)
45)
46)
47)
48)
49)
50)
51)
E
A
A
C
B
C
D
D
E
D
C
E
E
A
C
C
D
A
D
D
B
E
D
E
B
A
C
A
A
D
E
E
D
B
D
D
B
C
D
D
B
C
A
A
D
D
C
B
E
A
E
52)
53)
54)
55)
56)
57)
58)
59)
60)
61)
62)
63)
64)
65)
66)
67)
68)
69)
70)
71)
72)
73)
74)
75)
76)
77)
78)
79)
80)
81)
82)
D
B
E
D
D
A
It's good: 59 miles/gal
$68.00
C
E
D
E
A
B
The 32 compensates for the fact that the Celsius scale uses zero as its reference point for the
freezing point of water, but the Fahrenheit scale uses 32 as this reference point.
This value compensates for the different size of the two degrees. In the Celsius scale there
are 100 degrees between the freezing point and the boiling point of water, but in the
Fahrenheit scale there are 180 degrees to cover the same interval. The ratio of 180 to 100 is
1.8, so this correction factor is used in the formula.
This value compensates for the fact that the freezing point of water on the Celsius scale is
273.15 degrees lower than on the Kelvin scale. Since kelvins are the same size as Celsius
degrees, no other correction factors are needed.
A
E
E
B
D
B
A
A
A
1.3 × 10-3 g/cm3
B
A
D
Notice that the student is not asked to solve the problem, but to explain the reasoning.
Density can be used as a conversion factor because the definition essentially states that x g of
substance is equivalent to y mL of the substance. Therefore, the two conversion factors,
and
conversion.
, can be written and the appropriate one used to make the desired