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C) 290
D) 29
E) 336
19) 1 nanometer = __________ picometers
A) 1000
B) 0.1
C) 0.01
D) 1
E) 10
20) 1 picometer = __________ centimeters
A) 1 × 1010
B) 1 × 10-10
C) 1 × 108
D) 1 × 10-8
E) 1 × 10-12
21) 1 kilogram = __________ milligrams
A) 1 × 10-6
B) 1,000
C) 10,000
D) 1,000,000
E) none of the above
22) "Absolute zero" refers to __________.
A) 0 Kelvin
B) 0° Fahrenheit
C) 0° Celsius
D) °C + 9/5(°F - 32)
E) 273.15 °C
23) The density (in g/cm3) of a gold nugget that has a volume of 1.68 cm3 and a mass of 32.4 g is
__________.
A) 0.0519
B) 19.3
C) 54.4
D) 0.0184
E) 32.4
24) A certain liquid has a density of 2.67 g/cm3. 1340 g of this liquid would occupy a volume of
__________ L.
A) 1.99 × 10-3
B) 50.2
C) 3.58
D) 35.8
E) 0.502
25) A certain liquid has a density of 2.67 g/cm3. 30.5 mL of this liquid would have a mass of
__________ Kg.
A) 81.4
B) 11.4
C) 0.0875
D) 0.0814
E) 0.0114
26) Osmium has a density of 22.6 g/cm3. The mass of a block of osmium that measures 1.01 cm ×
0.233 cm × 0.648 cm is __________ g.
A) 6.75 × 10-3
B) 3.45
C) 148
D) 6.75 × 103
E) 34.5
19.
27) 3.337 g/cm3 = __________ kg/m3
A) 3.337 × 10-9
B) 3.337 × 10-5
C) 3337
D) 0.3337
E) 333.7
28) One side of a cube measures 1.55 m. The volume of this cube is __________ .
A) 2.40 × 104
B) 3.72 × 106
C) 2.40
D) 3.72
E) 155
29) The length of the side of a cube (in cm) having a volume of 44.4 L is __________.
A) 875
B) 35.4
C) 6.66
D) 66.6
E) 0.354
30) 45 m/s = __________ km/hr
A) 2.7
B) 0.045
C) 1.6 × 102
D) 2.7 × 103
E) 1.6 × 105
31) If an object, beginning at rest, is moving at a speed of 700 m/s after 2.75 min, its rate of acceleration
(in m/s2) is __________. (Assume that the rate of acceleration is constant.)
A) 1.16 × 105
B) 255
C) 193
D) 4.24
E) 1.53 × 104
32) The correct answer (reported to the proper number of significant figures) to the following is
__________.
6.3 × 3.25 = _____
A) 20.
B) 20.475
C) 20.48
D) 20.5
E) 21
33) The correct answer (reported to the proper number of significant figures) to the following is
__________.
(2.05631)(6.9391136) / 12.59326 = _____
A) 1.1330639
B) 1.13306
C) 1.133064
D) 1.1361
E) none of the above
34) The correct answer (reported to the proper number of significant figures) to the following is
__________.
12.75 x 1.3621 = _____
A) 17.367
B) 17.40
C) 17.37
D) 17.4
E) 17.0
35) The correct answer (reported to the proper number of significant figures) to the following is
__________.
(12.67 + 19.2)(3.99) / (1.36 + 11.366) = _____
A) 9.99851
B) 9.9985
C) 9.999
D) 1.00 x 101
E) none of the above
36) The number 1.00430 has __________ significant figures.
A) 2
B) 3
C) 5
D) 6
E) 4
37) The correct result (indicating the proper number of significant figures) of the following addition is
__________.
12
1.2
0.12
+ 0.012
A) 13
B) 13.3
C) 13.33
D) 13.332
E) none of the above
38) = __________
A) 113.73635
B) 113.736
C) 113.74
D) 113.7
E) 1.1 × 102
39) The correct result of the molecular mass calculation for H2SO4 is ________.
4 × 15.9994 + 32.066 + 2 × 1.0079 =
A) 98.08
B) 98.079
C) 98.074
D) 98.838
E) 98.84
40) The volume of a regular cylinder is V =πr2h. Using the value 3.1416 for the constant π, the volume
(cm3) of a cylinder of radius 2.34 cm and height 19.91 cm expressed to the correct number of significant
figures is __________.
A) 342.49471
B) 342.495
C) 342.49
D) 343
E) 342
41) There are __________ significant figures in the answer to the following computation:
A) 1
B) 2
C) 3
D) 4
E) 5
42) There should be __________ significant figures in the answer to the following computation.
A) 1
B) 2
C) 3
D) 4
E) 5
43) __________ significant figures should be retained in the result of the following calculation.
A) 1
B) 2
C) 3
D) 4
E) 5
44) The density of a 167.4 g sample of magnesium having a volume of 96.32 ml is __________ g/cm3.
A) 0.5754
B) 7128
C) 3.625
D) 2.663
E) 1.738
45) The output of a plant is 4335 pounds of ball bearings per week (five days). If each ball bearing
weighs 0.0113 g, how many ball bearings does the plant make in a single day? (Indicate the number in
proper scientific notation with the appropriate number of significant figures.)
A) 3.84 × 105
B) 7.67 × 104
C) 867
D) 3.49 × 107
E) 2.91 × 106
46) The density of mercury is 13.6 g/cm3. The density of mercury is __________ kg/m3.
A) 1.36 × 10-2
B) 1.36 × 104
C) 1.36 × 108
D) 1.36 × 10-5
E) 1.36 × 10-4
47) The distance from the Earth to the Moon is approximately 240,000 miles. If a rocket travels at a
speed of 7.50 km/sec, it will take __________ days to travel between the Earth and Moon.
A) 0.60
B) 1.7
C) 3.9
D) 7.3
E) 5.6
48) 1.55 kg/m3 is equivalent to __________ g/L.
A) 3.58 x 1012
B) 1.95 x 103
C) 6.83
D) 1.60 x 109
E) 1.55
49) An iron mine produces 1.67 x 104 tons of raw ore per day. If the ore is 26.39% elemental iron, the
mine produces __________ pounds of elemental iron per year. (Assume the mine operates 365 days per
year.)
A) 1.221 x 1010
B) 8.814 x 106
C) 3.217 x 109
D) 1.611 x 106
E) 3.66 x 1011
50) A 4.369 g sample of metal is placed in a flask. Water is added to the flask and the total volume in
the flask is read to be 126.4 ml. The mass of the water, flask, and metal is 268.5 g. If the mass of the
flask is 139.3 g and the density of water is 1.000 g/ml, the density of the solid is __________ g/cm3.
A) 0.366
B) 1.56
C) 0.641
D) 2.73
E) 3.21
51) The quantity 1.0 mg/cm2 is the same as 1.0 × __________ kg/m2.
A) 10-4
B) 104
C) 10-6
D) 10-2
E) 104
52) A rectangular water tank is 14.5 cm long and 4.63 cm wide. If 368.5 g of water completely fills the
tank, the height of the tank is __________ cm. (Assume the density of water is 1.000 g/ml.)
A) 6.45
B) 5.49
C) 14.0
D) 3.68
E) 4.62
53) There are __________ ng in a pg.
A) 0.001
B) 1000
C) 0.01
D) 100
E) 10
54) One edge of a cube is measured and found to be 13 cm. The volume of the cube in m3 is
__________.
A) 2.2 × 10-3
B) 2.2 × 10-6
C) 2.2
D) 2.2 × 103
E) 2.2 × 106
55) The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is __________
g.
A) 6.0
B) 4.6 × 10-2
C) 4.6 × 10-5
D) 6.0 × 10-3
E) 4.6
1.3 Algorithmic Questions
1) The symbol for the element calcium is __________.
A) Pt
B) P
C) Ca
D) S
E) K
2) The symbol for the element magnesium is __________.
A) Rb
B) Mn
C) Ne
D) Si
E) Mg
3) The symbol for the element mercury is __________.
A) Me
B) Pb
C) Sn
D) Hg
E) Na
4) The temperature of -25 °C is __________ in Kelvins.
A) 138
B) 166
C) 103
D) 298
E) 248
5) An object will sink in a liquid if the density of the object is greater than that of the liquid. The mass of
a sphere is 4.69 g. If the volume of this sphere is less than __________ cm3, then the sphere will sink in
liquid mercury (density = 13.6 g/cm3).
A) 0.345
B) 2.90
C) 1.08
D) 7.48
E) none of the above
27.
6) What decimal power does the abbreviation f represent?
A) 1 × 106
B) 1 × 103
C) 1 × 10-1
D) 1 × 10-15
E) 1 × 10-12
7) What decimal power does the abbreviation pico represent?
A) 1 × 106
B) 1 × 109
C) 1 × 10-1
D) 1 × 10-12
E) 1 × 10-15
8) A temperature of 300. K is the same as __________°F.
A) 81
B) 260
C) 711
D) 351
E) 63
9) What is the volume (in cm3) of a 63.4 g piece of metal with a density of 12.86 g/cm3?
A) 4.93
B) 19.5
C) .425
D) 6.65
E) none of the above
10) The density of silver is 10.5 g/cm3. A piece of silver with a mass of 125 g would occupy a volume
of __________ cm3.
A) 0.171
B) 644
C) 10.5
D) 0.00155
E) 11.9
11) The density of silver is 10.5 g/cm3. A piece of silver that occupies a volume of 63.1 cm3 would
have a mass of __________ g.
28.
A) 663
B) .445
C) 2.25
D) 112
E) 23.6
12) The correct answer (reported to the proper number of significant figures) to the following is
__________.
11.5 × 8.78 = __________
13) The correct answer (reported to the proper number of significant figures) to the following is
__________.
(1815-1806) × (9.11 × 7.92) = __________
14) 38.325 lbs = __________ grams. (1 lb = 454 g)
15) The number 0.00430 has __________ significant figures.
A) 2
B) 3
C) 5
D) 4
E) 6
16) How many significant figures are in the measurement 5.34 g?
A) 1
B) 2
C) 4
D) 3
E) 5
17) The width, length, and height of a large, custom-made shipping crate are 1.20 m, 2.12 m, and
0.54 m, respectively. The volume of the box using the correct number of significant figures is
__________ m3.
A) 1.37376
B) 1.4
C) 1.37
D) 1.374
E) 1.3738
18) The estimated costs for remodelling the interior of an apartment are: three 1-gallon cans of paint at
$13.22 each, two paint brushes at $9.53 each, and $135 for a helper. The total estimated cost with the
appropriate significant figures is
A) 193.72
B) 1.9 × 102
C) 194
D) 2 × 102
E) 193.7
19) Round the following number to four significant figures and express the result in standard
exponential notation: 229.613
A) 0.2296 × 103
B) 229.6
C) 2.296 × 10-2
D) 2.296 × 102
E) 22.96 × 10-1
20) The quantity __________ m is the same as 5 km.
A) 5000
B) 500
C) 0.005
D) 0.05
E) 50
21) How many liters of wine can be held in a wine barrel whose capacity is 26.0 gal?
1 gal = 4 qt = 3,7854 L.
A) 1.46 × 10-4
B) 0.146
C) 98.4
D) 6.87 × 103
E) 6.87
22) The recommended adult dose of Elixophyllin , a drug used to treat asthma, is 6.00 mg/kg of body
mass. Calculate the dose in milligrams for a 115-lb person. 1 lb = 453.59 g.
A) 24
B) 1,521
C) 1.5
D) 313
E) 3.1 × 105
23) The density of air under ordinary conditions at 25 °C is 1.19 g/L. How many kilograms of air are in
a room that measures 11.0 ft x 11.0 ft and has an 10.0 ft ceiling? 1 in. = 2.54 cm (exactly);
1 L = 103 cm3
A) 3.66
B) 0.152
C) 4.08 × 104
D) 0.0962
E) 40.8
24) How many liters of air are in a room that measures 10.0 ft x 11.0 ft and has an 8.00 ft ceiling?
1 in. = 2.54 cm (exactly); 1 L = 103 cm3
A) 2.49 × 104
B) 92.8
C) 26.8
D) 2.68 × 107
E) 8.84 × 105
1.4 Short Answer Questions
1) Gases do not have a fixed __________ as they are able to be __________.
2) The symbol for the element phosphorus is __________.
3) Sn is the symbol for the element __________.
4) Si is the symbol for the element __________.
5) Cu is the symbol for the element __________.
6) Mass and volume are often referred to as __________ properties of substances.
7) 1 milligram = __________ micrograms
8) 1.035 × L = __________ mL
1) Water is considered to be a diatomic molecule because it is composed of two different atoms.
2) A scientific theory is a concise statement or an equation that summarizes a broad variety of
observations.
3) 3.2 cm3 = 0.0032 L
4) Temperature is a physical property that determines the direction of heat flow.
5) There are 6 significant figures in the number 0.003702.
