Deck 2: The Chemists Toolbox

Question 1

Convert 89.5 m to millimeters.

A) 8.95 × 10⁴ mm
B) 8.95 × 10 ^{− 4} mm
C) 8.95 × 10² mm
D) 8.95 × 10 ^{− 2} mm
E) 8.95 × 10⁵ mm

Answer 1

8.95 × 10⁴ mm

Question 2

What is the standard SI unit for mass?

A) Gram
B) Pound
C) Ounce
D) Kilogram
E) Ton

Answer 2

Kilogram

Question 3

Which of the following is not true?

A) 1 cm = .01 m
B) 100 cm = 1 m
C) 1 cm = 100m
D) .01 cm = .0001m
E) 10000 cm = 100 m

Answer 3

1 cm = 100m

Question 4

Determine the volume occupied by 1.5 g of ethyl alcohol. The density of ethyl alcohol is 0.789 g/mL.

A) 1.9 mL
B) 1.3 mL
C) 0.53 mL
D) 0.526 mL
E) 1.331 mL

Question 5

Chloroform is a commonly used anesthetic with a density of 1.483 g/mL. Determine the volume of chloroform needed to administer a 9.37 g sample of the anesthetic.

A) 0.158 g
B) 6.32 g
C) 13.9 g
D) 13.89 g
E) 0.0632 g

Question 6

Determine the mass in grams of a gold sample that occupies a volume of 16.39 mL? Gold has a density of 19.3 g/mL.

A) 0.118 g
B) 0.316 g
C) 0.849 g
D) 1.18 g
E) 316 g

Question 7

What is the standard SI unit for length?

A) Meter
B) Feet
C) Mile
D) Kilometer
E) Centimeter

Question 8

Which of these represents the SI prefix for micro ( μ )?

A) 10 ^{− 6}
B) 10 ^{− 3}
C) 10 ^{− 9}
D) 10 ^{− 2}
E) 10⁶

Question 9

The result of an addition or subtraction should have the same number of decimal places as the quantity carrying the _____.

A) the most precise number
B) the least precise number
C) highest number of significant figures
D) least number of significant figures
E) highest decimal numbers

Question 10

Which of these represents the SI prefix for mega (M)?

A) 10⁹
B) 10⁶
C) 10³
D) 10 ^{− 2}
E) 10 ^{− 6}

Question 11

The result of a multiplication or division should carry the same number of significant digits as the factor with the _____.

A) the most precise number
B) the least precise number
C) highest number of significant figures
D) least number of significant figures
E) highest decimal numbers

Question 12

Determine the density of a 50.0 g sample of mercury having a volume of 3.66 mL. Carry out the calculation to the correct number of significant digits .

A) 13.66 g/mL
B) 13.7 mL
C) 183 g/mL
D) 0.0732 g/mL
E) 0.073 g/mL

Question 13

How many significant figures are there in the number 10.00?

A) 1
B) 2
C) 3
D) 4
E) 0

Question 14

If 15.0 mL of a metal has a mass of 103.0 g, what is the density of the metal?

A) 6.87 g/mL
B) 1550 g/ mL
C) 0.146 g/mL
D) 1.46 g/mL
E) 9.867 g/mL

Question 15

The density of gold is 19.3 g/mL. If the current price of gold is $56.75 per gram, what is the volume of a nugget of gold worth $150.00?

A) 1.15 mL
B) 0.868 mL
C) 1.72 mL
D) 1.27 mL
E) 0.137 mL

Question 16

How many significant figures are there in the number 10,100?

A) 1
B) 3
C) 4
D) 5
E) 0

Question 17

What is the correct SI unit for time?

A) Millisecond
B) Hour
C) Second
D) Minute
E) Microsecond

Question 18

Which of these represents the SI prefix for centi (c)?

A) 10 ^{− 6}
B) 10 ^{− 3}
C) 10 ^{− 1}
D) 10 ^{− 2}
E) 10 ²

Question 19

The diameter of the nucleus of an atom is approximately 1 × 10 − ¹³ m. If 1 nm is equal to 10 Å , what is the diameter of the nucleus in Å ? (1 nm = 1 x 10 − ⁹ m)

A) 1 × 10 ^{− 21} Å
B) 1 × 10 ^{− 6} Å
C) 1 × 10 ^{− 5} Å
D) 1 × 10 ^{− 4} Å
E) 1 × 10 ^{− 3} Å

Question 20

Determine the density of a 100.0 g sample of mercury having a volume of 7.36 cm ³ . Carry out the calculation to the correct number of significant digits.

A) 13.58 g/cm³
B) 13.66 g/cm³
C) 183 g/cm³
D) 0.0732 g/cm³
E) 0.073 g/cm³

Question 21

A football field is 100.0 yd long. What is its length in meters? (1 yd = 0.9144 m)

A) 0.09144 m
B) 91.44 m
C) 274.32 m
D) 334 m
E) 9.144 × 10³ m

Question 22

Solve the problem. ​
(12.67 × 4.23) ÷ 23.42 = _____

A) 2.3587
B) 2. 6334
C) 2. 2289
D) 2. 8800
E) 2. 2884

Question 23

Solve the problem. ​
(3.21 × 10¹⁰ − 3.13 × 10¹²) ÷ (7.65 × 10⁵) = _____

A) 4.13 × 10⁶
B) 2.37 × 10¹⁸
C) 65.7 × 10¹⁸
D) − 23.7 × 10¹⁷
E) − 4.04 × 10⁶

Question 24

Solve the problem. ​
3.728 + 6.272 = _____

A) 10
B) 10.0
C) 10.00
D) 10.000
E) 10.0000

Question 25

One m³ equals _____.

A) 1000 mm³
B) 1,000,000 mm³
C) 1,000,000,000 mm³
D) 1,000,000,000,000 mm³
E) 1,000,000,000,000,000 mm ³

Question 26

How many kilograms of calcium are there in 173 lb of calcium? (1 lb = 454 g)

A) 1.1 kg
B) 78.54 kg
C) 1.1 × 10² kg
D) 3.8 × 10⁴ kg
E) 7.85 × 10⁴ kg

Question 27

A football field is 100 yd long. What is its length in centimeters? (1 yd = 0.9144 m)

A) 0.09144 cm
B) 91.44 cm
C) 274.32 cm
D) 334 cm
E) 9.144 × 10³ cm

Question 28

The long jump record is 8.90 m. What is the length in yards? (1 yd = 0.9144 m)

A) 9.73 yd
B) 293 yd
C) 350 yd
D) 4204 yd
E) 5000 yd

Question 29

Solve the problem. ​
3.72 × 10 ⁸ × 9.26 × 10 − ³ = _____

A) 3.44 × 10⁶
B) 4.02 × 10¹⁰
C) 3.45 × 10⁵
D) 3.44 × 10 ^{− 4}
E) 4.02 × 10 ^{− 10}

Question 30

Solve the problem. ​
1.5 × 10³ + 3.14 × 10⁴ − 1.21 × 10² = _____

A) 3.28 × 10⁴
B) 3.30 × 10³
C) 3.3 × 10 ^{− 4}
D) 3.30 × 10⁵
E) 3.43 × 10⁹

Question 31

Which among the following has the most number of significant figures?

A) 0.5071
B) 0.201
C) 6.02 × 10²³
D) 51
E) 103

Question 32

Most races are now measured in kilometers. What is the distance in miles a runner must complete in a 10-kilometer run? (1 km = 0.62137 mile)

A) 3.1 miles
B) 6.2 miles
C) 16.1 miles
D) 32.2 miles
E) 62.137 miles

Question 33

The long jump record is 8.90 m. What is the length in inches? (1 m = 39.37 in )

A) 9.73 in
B) 293 in
C) 350 in
D) 4204 in
E) 5000 in

Question 34

Convert 2.50 × 10 ⁴ meters to miles. (1 km = 0.62137 mile)

A) 76.2 miles
B) 6.35 miles
C) 15.5 miles
D) 155 miles
E) 186 miles

Question 35

Convert 10.5 mm/s to ft/hr.

A) 124 ft/hr
B) 9.57 × 10 ^{− 6} ft/hr
C) .0344 ft/hr
D) 37800 ft/hr
E) 0.125 ft/hr

Question 36

Which among the following is an equivalent of 0.01%?

A) 100 ppm
B) 100 ppb
C) 0.000001 ppm
D) 0.000001 ppb
E) 0.0001 ppm

Question 37

Given that 1 in = 2.54 cm, which of the following is true?

A) 1 in² = 2.54 cm²
B) 1 in² = 5.08 cm²
C) 1 in² = 6.45 cm²
D) 1 in² = 1.27 cm²
E) 1 in² = 10.16 cm²

Question 38

One in ³ equals _____.

A) 2.54 cm³
B) 7.62 cm³
C) 16.38 cm³
D) 0.394 cm³
E) 3.94 cm³

Question 39

Solve the problem. ​
(5.46 × 10⁷ + 3.13 × 10⁶) × (7.65 × 10⁵) = _____

A) 65.7 × 10¹⁸
B) 130.7 × 10¹⁸
C) 4.42 × 10¹³
D) 2.39 × 10¹²
E) 65.7 × 10⁸

Question 40

One milliliter is equal to _____.

A) 2.54 cubic inches
B) 1000 liters
C) 1 cubic centimeter
D) 16.39 cubic inches
E) 0.6214 cubic inches

Question 41

Which of these numbers has four significant figures?

A) 0.3211
B) 0.201
C) 6.02 × 10²³
D) 510
E) 0.0103

Question 42

Which of these is the correct normal decimal notation for 5.23 × 10 ^{− 4}?

A) 0.0523
B) 0.00523
C) 0.0000523
D) 0.000523
E) 52,300

Question 43

Because of the high heat and humidity in the summer in Death Valley, California, a hiker requires about one quart of water for every two miles traveled on foot. If the density of water is 0.999 g/mL at 45 ^o C, how many kilograms of water are required for a person to walk 30 kilometers in Death Valley? (1 L = 1.0567 qt; 1 km = 0.62317 miles)

A) 8.8 kg
B) 70 kg
C) 350 kg
D) 700 kg
E) 8.8 × 10³ kg

Question 44

Solve the problem. ​
131.7 × 1.05 = _____

A) 1.38 × 10³
B) 1.38 × 10²
C) 1.3 × 10³
D) 1.30 × 10³
E) 1.3 × 10 ^{− 3}

Question 45

Solve the problem. ​
33.5 ÷ 3.011 = _____

A) 1.11 × 10¹
B) 1.11 × 10³
C) 1.113 × 10¹
D) 1.11 × 10²
E) 1.112587 × 10¹

Question 46

A sample of molten iron occupies a volume of 7.11 × 10 ^{− 3} L. If the density of iron is 7.86 g/cm³, what is the mass of iron in grams in the sample?

A) 0.000904 g
B) 0.0559 g
C) 0.904 g
D) 1.105 g
E) 55.8846 g

Question 47

Which of these is the correct normal notation for 8.14 × 10⁵?

A) 0.0000814
B) 0.000814
C) 81.400
D) 814,000
E) 81,400,000

Question 48

An irregularly shaped piece of metal with a mass of 220 g was placed in a graduated cylinder that contained 35.00 mL of water. This raised the water level to 52.50 mL. What is the density of the metal?

A) 0.285 g/mL
B) 4.19 g/mL
C) 17.5 g/mL
D) 12.6 g/mL
E) 38.5 g/mL

Question 49

Figure 2-1 Refer to Figure 2-1. Which of these statements is true based on the data provided by the graph?

A) The pH of the solution must be determined algebraically.
B) The pH of the solution is relatively unaffected by the addition of the base.
C) The pH of the solution is 7 when approximately 16 mL of the base has been added.
D) The pH of the solution is relatively constant after the addition of the first 14 mL of the base.
E) The pH of the solution rises significantly when the volume of the base is increased from 14 mL to 18 mL.

Question 50

Figure 2-1 Refer to Figure 2-1. What was the effect on the pH of the solution when the volume of the base was increased from 8 mL to 13 mL?

A) The pH dropped by a value of 4.
B) The pH increased by a value of 4.
C) The pH remained relatively unchanged.
D) The pH increased by a value of 10.
E) The pH increased by a value of 20.

Question 51

Determine the volume in liters of a 1.00-ounce bottle.(1.06 qt = 1 L; 32 ounces = 1 qt)

A) 0.0295 L
B) 0.03125 L
C) 0.03313 L
D) 30.2 L
E) 33.9 L

Question 52

Which of these is the correct scientific notation for 6,000,220?

A) 6.022 × 10⁵
B) 6.00022 × 10⁵
C) 6.00022 × 10⁶
D) 6.00022 × 10 ^{− 5}
E) 6.00022 × 10 ^{− 6}

Question 53

Which of these is the correct normal notation for 7.77 × 10⁷?

A) 0.000000777
B) 0.0777
C) 7,770
D) 7,770,000
E) 77,700,000

Question 54

Convert 4.5 inches to meters . (2.54 cm = 1 inch)

A) 0.1143 m
B) 1.77 m
C) 11.43 m
D) 0.0177 m
E) 1143 m

Question 55

Which of the following is correctly written using scientific notation?

A) 50.0 × 10⁶
B) 4.02 × 10²¹⁶
C) 1 × 10 ^{− 6.8}
D) 1.005 × 10 ^{− 9.05}
E) 10 ^{− 5}

Question 56

Figure 2-1 Refer to Figure 2-1. What is the pH of the solution after 8 mL of the base has been added?

A) 3
B) 4
C) 6
D) 7
E) 8

Question 57

Which of these is incorrect ?

A) centi (c) = 10 ^{− 2}
B) mega (M) =10 ⁶
C) milli (m) = 10 ^{− 3}
D) nano (n) = 10 ⁹
E) micro ( μ) = 10^{- 6}

Question 58

An irregularly shaped piece of metal with a mass of 105 g was placed in a graduated cylinder that contained 25.00 mL of water. This raised the water level to 45.35 mL. What is the density of the metal?

A) 0.238 g/mL
B) 2.3 g/mL
C) 4.2 g/mL
D) 5.16 g/mL
E) 20.35 g/mL

Question 59

Which of these series correctly orders the values given from smallest to largest?
I. 0.001 Mg
II. 2,000,000 ng
III. 1 Gg
IV. 100,000 cg

A) III < II < II < IV
B) II < I < IV < III
C) II < I = IV < III
D) I < IV = III < II
E) I < III < IV < II

Question 60

Which of these series provides the correct ascending order of values given?
I. 100 cm
II. 1 km
III. 10 m
IV. 100,000 mm

A) I < II < III < IV
B) II < I < IV < III
C) I < II = III < IV
D) I < IV < III < II
E) I < III < IV < II

Question 61

Solve the following equation for y: 3y = 24

A) 3
B) 6
C) 7
D) 8
E) 12

Question 62

Which of these samples of aluminum will occupy the greatest volume? (Density of aluminum = 2.70 g/cm³; 454 g = 1 pound)

A) 10,000 g
B) 25 pounds
C) 1 kg
D) 5 × 10 ^{− 2} L
E) 2,000 mL

Question 63

Which of these samples of water will have the greatest mass? (Density of water = 1.00 g/cm³; 454 g = 1 pound)

A) 10,000 g
B) 25 pounds
C) 1 kg
D) 5 × 10 ^{− 2} L
E) 2,000 mL

Question 64

Solve the following equation for z: 4z ÷ 2z + 3 = 30

A) 2
B) 6.25
C) 10
D) 11
E) 13.5

Question 65

Chemical waste is often shipped in 55-gallon drums. What is the weight in pounds of a 55-gallon drum if the density of the waste is 1.5942 g/cm³? (454 g = 1 pound; 0.9463 L = 1 quart; 4 quarts = 1 gallon)

A) 130 lbs
B) 731 lbs
C) 810 lbs
D) 4.5 × 10⁴ lbs
E) 5.9 × 10⁴ lbs

Question 66

A regulation soccer field is 110.0 yards in length. Calculate the length in millimeters. (1.094 yards = 1 m)

A) 0.101 mm
B) 1.01 mm
C) 100.5 mm
D) 1.01 × 10⁴ mm
E) 1.01 × 10⁵ mm

Question 67

What is the mass in kilograms of a 25.00-pound dumbbell? (454 g = 1 pound)

A) 1.377 × 10 ^{− 3} kg
B) 1.377 kg
C) 11.35 kg
D) 1.377 × 10³ kg
E) 1.135 × 10⁷ kg

Question 68

The equivalent of 1 m is _____.

A) 3.54 in
B) 5.6 in
C) 2.5 in
D) 39.37 in
E) 31.35 in

Question 69

A 5 ft 7 in track athlete weighs 110 pounds. What is her height in cm and her weight in kilograms? (2.54 cm = 1 inch; 454 g = 1 pound)

A) 14.5 cm and  242 kg
B) 152 cm and  49.9 kg
C) 170 cm and  49.9 kg
D) 154 cm and  242 kg
E) 152 cm and  4.99 × 10⁴ kg

Question 70

The equivalent of 31456 g is _____.

A) 3.1456 × 10⁻³ mg
B) 3.1456 × 10⁻³ kg
C) 31.456 × 10³ kg
D) 314.56 mg
E) 3.1456 × 10¹ kg

Question 71

The SI unit of temperature is _____.

A) kelvin
B) fahrenheit
C) celsius
D) rankine
E) newton

Question 72

The _____ of a substance is a measure of how much of its mass is in a given amount of space.

A) volume
B) density
C) weight
D) force
E) resistance

Question 73

Solve the following equation for x: 13x = x + 156.

A) 13
B) 20
C) 1
D) 7
E) 12

Question 74

Solve the problem. ​
5.6 × 10² × 7.41 × 10³ = _____

A) 232 × 10¹
B) 7.55 × 10⁵
C) 2.32 × 10⁵
D) 4.1 × 10⁶
E) 232 × 10⁵

Question 75

An international group of zookeepers with successful breeding programs made the following animal exchanges last year. Using the same bartering system, how many monkeys can a zoo obtain in exchange for 15 flamingos?

A) 3 monkeys
B) 5 monkeys
C) 8 monkeys
D) 12 monkeys
E) 15 monkeys

Question 76

Solve the following equation for z: 2(z + 6) − 10 = 42

A) 6
B) 10
C) 12
D) 20
E) 40

Question 77

Solve the following equation for y: 3y + 24 = 6y − 3

A) 3
B) 6
C) 9
D) 8
E) 12

Question 78

Identify the non-significant term in 0.5467

A) 0
B) 5
C) 4
D) 6
E) 7