Deck 2: Chemistry and Measurements

Question 1

Which of the following is a measurement of mass in the metric system?

A)milliliter
B)centimeter
C)Celsius
D)meter
E)kilogram

Answer 1

kilogram

Question 2

What is the correct answer for the calculation of a volume (in mL) with measured numbers ?

A)57 mL
B)0.223 mL
C)14 mL
D)0.22 mL
E)14.3 mL

Answer 2

0.22 mL

Question 3

A value of 345 cm is a measure of

A)distance.
B)temperature.
C)volume.
D)density.
E)mass.

Answer 3

distance.

Question 4

The number of significant figures in the measurement of 45.030 mm is

A)none.
B)three.
C)four.
D)five.
E)six.

Question 5

A value of 25 °C is a measurement of

A)mass.
B)density.
C)volume.
D)temperature.
E)distance.

Question 6

Which of the following examples illustrates a number that is correctly rounded to three significant figures?

A)20.0332 grams to 20.0 grams
B)4.05438 grams to 4.054 grams
C)109,526 grams to 109 500 grams
D)0.03954 grams to 0.040 grams
E)103.692 grams to 103.7 grams

Question 7

Which of the following measurements has three significant figures?

A)0.051 m
B)510 m
C)0.510 m
D)0.005 m
E)5100 m

Question 8

Which of the answers for the following calculations contains the correct number of significant figures?

A)
B)
C)
D)
E)

Question 9

A value of 36 mL is a measure of

A)distance.
B)temperature.
C)density.
D)volume.
E)mass.

Question 10

The measurement of the gravitational pull on an object is its

A)weight.
B)volume.
C)mass.
D)length.
E)size.

Question 11

A calculator answer of 423.6059 must be rounded off to three significant figures. What answer is reported?

A)424
B)423.6
C)423.7
D)420
E)423

Question 12

Significant figures are important because they indicate

A)the exact numbers in a measurement.
B)the certain and estimated digits in a measurement.
C)the number of measurements.
D)the number of digits on a calculator.
E)the accuracy of the conversion factor.

Question 13

Which of the following is the basic unit of mass in the SI?

A)pound
B)kilogram
C)microgram
D)gram
E)milligram

Question 14

Which of the following measured numbers contains the designated CORRECT number of significant figures?

A)0.04300 5 significant figures
B)0.00302 2 significant figures
C)1.04 2 significant figures
D)156 000 3 significant figures
E)3.0650 4 significant figures

Question 15

How many significant figures are in the measured number 0.00208 m?

A)two
B)five
C)six
D)three
E)four

Question 16

The SI base unit for length is the

A)foot.
B)meter.
C)inch.
D)kilometer.
E)millimeter.

Question 17

Which of the following measurements has the same number of significant figures as the measured number 0.02030?

A)2.03 × 103
B)4600
C)0.0067
D)510
E)4.006

Question 18

Which of the following is a measurement of temperature in the metric system?

A)degree Celsius
B)meter
C)lb
D)kilogram
E)degree Fahrenheit

Question 19

The amount of space occupied by a substance is its

A)density.
B)mass.
C)volume.
D)weight.
E)length.

Question 20

The metric unit for volume is the

A)liter.
B)meter.
C)pint.
D)centimeter.
E)quart.

Question 21

A conversion factor set up correctly to convert 15 inches to centimeters is

A)1 inch/2.54 cm.
B)100 cm/1 m.
C)1 cm/10 mm.
D)10 cm/1 inch.
E)2.54 cm/1 inch.

Question 22

In which of the following is the metric unit paired with its correct abbreviation?

A)microgram / Mg
B)centimeter / cmm
C)milliliter / mcL
D)kilogram / Kg
E)microgram / mcg

Question 23

What is the relationship between grams and micrograms?

A) 1 g = 1000 µg
B) 1 g = 0.001 µg
C) 1 g = 100 µg
D) 1 g = 0.000 001 µg
E) 1 g = 1 000 000 µg

Question 24

What is the answer, with the correct number of decimal places, for this problem? 4.392 g + 102.40 g + 2.51 g =

A)109.3 g
B)110 g
C)109 g
D)109.302 g
E)109.30 g

Question 25

The cubic centimeter (cm³ or cc) has the same volume as a

A)cubic decimeter.
B)cubic liter.
C)cubic inch.
D)milliliter.
E)centimeter.

Question 26

According to the United States Food and Drug Administration, the recommended daily requirement of protein is 44 g. This is ________ oz of protein.

A)1.6
B)1248.5
C)150 000
D)320 000
E)0.0605

Question 27

Which of the following measurements are NOT equivalent?

A)183 L = 0.183 kL
B)84 cm = 8.4 mm
C)24 dL = 2.4 L
D)25 mg = 0.025 g
E)150. ms = 0.150 s

Question 28

5.21 cm is the same distance as

A)5.21 mm.
B)52.1 dm.
C)5210 m.
D)0.0521 m.
E)0.00521 km.

Question 29

When 2610 + 11.7 + 0.22 are added, which of the following expresses the answer to the correct number of decimal places?

A)2621.92
B)2620
C)2600
D)2621.9
E)2621

Question 30

What is the conversion factor for the relationship between millimeters and centimeters?

A)10 mm/1 cm
B)1 cm/1 mm
C)10 cm/1 mm
D)1 mm/1 cm
E)100 mm/1 cm

Question 31

9.31 g is the same mass as

A) 931 kg.
B) 931 µg.
C) 0.0931 dg.
D) 9310 mg.
E) 93.1 cg.

Question 32

Which of the following is the smallest unit?

A)milligram
B)gram
C)kilogram
D)decigram
E)microgram

Question 33

Which of the following setups would convert centimeters to feet?

A)
B)
C)
D)
E)

Question 34

What is the correct answer for the calculation ?

A)1.52
B)0.66
C)0.65645
D)1.5
E)0.656

Question 35

The correct answer for the addition of 7.5 g + 2.26 g + 1.311 g + 2 g is

A)10 g.
B)13 g.
C)13.1 g.
D)13.0 g.
E)13.071 g.

Question 36

In which of the following is the metric unit paired with its correct abbreviation?

A)kilogram / cg
B)centimeter / km
C)milliliter / mL
D)microgram / mg
E)gram / gm

Question 37

Which of the following is the largest unit?

A)kilometer
B)decimeter
C)meter
D)millimeter
E)micrometer

Question 38

Parts per million (ppm)is the same as:

A)milligrams per kilogram
B)grams per kilogram
C)parts per hundred
D)kilograms per milligram
E)micrograms per kilogram

Question 39

A researcher added three samples of sodium chloride solution; the volumes were: 0.351 mL, 0.350 mL and 0.349 mL. The total volume should be reported as

A)1.0500 mL.
B)1.1 mL.
C)1.050 mL.
D)1.05 mL.
E)1.0 mL.

Question 40

Which of the following conversion factors is a measured number?

A)12 in/ft
B)16 oz/lb
C)10 cm/dm
D)25 miles/gallon
E)12 eggs/dozen

Question 41

A nugget of gold with a mass of 521 g is added to 50.0 mL of water. The water level rises to a volume of 77.0 mL. What is the density of the gold?

A)10.4 g/mL
B)19.3 g/mL
C)6.77 g/mL
D)1.00 g/mL
E)0.0518 g/mL

Question 42

What is the density of a substance with a mass of 45.00 g and a volume of 26.4 mL?

A)0.587 g/mL
B)1.70 g/mL
C)45.0 g/mL
D)1.7 g/mL
E)0.59 g/mL

Question 43

The EPA limit for lead in the soil of play areas is 400 ppm. This is the same as

A) 400 µg lead in each kilogram of soil.
B) 400 mg lead in each kilogram of soil.
C) 400 mg lead in each gram of soil.
D) 400 µg lead in each milligram of soil.
E) 400 g lead in each kilogram of soil.

Question 44

1.00 pint of milk has a volume of how many milliliters? (2 pints = 1 quart)

A)472 mL
B)106 mL
C)1000 mL
D)1890 mL
E)530. mL

Question 45

Grapes are $1.49 per pound. What is the cost of 1.20 kg of grapes?

A)$0.81
B)$0.56
C)$3.94
D)$1.79
E)$2.73

Question 46

How many liters of soft drink are there in 5.25 qt?

A)5.0 L
B)4950 L
C)5.57 L
D)4.95 L
E)55.7 L

Question 47

How many kilograms are in 30.4 lb?

A)14 kg
B)66.88 kg
C)13.8 kg
D)66.9 kg
E)67 kg

Question 48

A driver is traveling at 60 km/h. Is the driver speeding if the speed limit is 45 mph?

A)Yes
B)No

Question 49

What is the mass of 2.00 L of an intravenous glucose solution with a density of 1.15 g/mL?

A)0.015 kg
B)2.30 kg
C)0.58 kg
D)1.15 kg
E)0.023 kg

Question 50

Which one of the following substances will float in gasoline, which has a density of 0.66 g/mL?

A)table salt (density = 2.16 g/mL)
B)sugar (density = 1.59 g/mL)
C)balsa wood (density = 0.16 g/mL)
D)mercury (density = 13.6 g/mL)
E)aluminum (density = 2.70 g/mL)

Question 51

How many centimeters are there in 57.0 in.?

A)22 cm
B)140 cm
C)0.0445 cm
D)145 cm
E)22.4 cm

Question 52

Mercury has a specific gravity of 13.6. How many milliliters of mercury have a mass of 0.35 kg?

A)0.026 mL
B)25.7 mL
C)0.0257 mL
D)26 mL
E)4760 mL

Question 53

What is 6.5 m converted to inches?

A)260 in
B)1700 in
C)1651 in
D)255.9 in
E)39 in

Question 54

A doctor's order is 0.125 g of ampicillin. The liquid suspension on hand contains 250 mg/5.0 mL. How many milliliters of the suspension are required?

A)3.0 mL
B)0.0063 mL
C)2.5 mL
D)0.0025 mL
E)6.3 mL

Question 55

How many pounds are in 3.5 kg?

A)7.7 lb
B)1.6 lb
C)1.59 lb
D)7.70 lb
E)0.629 lb

Question 56

How many kilograms are in 30.4 lb?

A)14 kg
B)67 kg
C)66.88 kg
D)66.9 kg
E)13.8 kg

Question 57

A dose of aspirin of 5.0 mg per kilogram of body weight has been prescribed to reduce the fever of an infant weighing 8.5 pounds. The number of milligrams of aspirin that should be administered is

A)53 mg.
B)5.0 mg.
C)19 mg.
D)0.59 mg.
E)1.6 mg.

Question 58

What is the mass of 53 mL of ethanol, which has a density of 0.79 g/mL?

A)67.1 g
B)42 g
C)67 g
D)41.9 g
E)53 g

Question 59

What is the volume of a cube that measures 4.00 cm on each side?

A)64.0 mL
B)0.640 L
C)64.0 L
D)64.00 mL
E)16.0 mL

Question 60

A liquid has a volume of 34.6 mL and a mass of 46.0 g. What is the density of the liquid?

A)1.33 g/mL
B)0.752 g/mL
C)0.663 g/mL
D)1.00 g/mL
E)1330 g/mL

Question 61

The ratio of the mass of a substance to its volume is its

A)density.
B)specific gravity.
C)conversion factor.
D)weight.
E)buoyancy.

Question 62

Round off each of the following to three significant figures.
25 225

Question 63

Round off each of the following to three significant figures.
58.5422

Question 64

Diamond has a density of 3.52 g/mL. What is the volume in cubic centimeters of a diamond with a mass of 15.1 g?

A)0.233 cm3
B)4.3 cm3
C)53 cm3
D)53.2 cm3
E)4.29 cm3

Question 65

Round off each of the following to three significant figures.
504.85

Question 66

Which of the following is often used to determine an individual's percentage of body fat?

A)weight loss
B)temperature
C)density
D)weight gain
E)height

Question 67

The specific gravity of a solution is 1.18. Its density is

A)0.118 g/mL.
B)11.8 g/mL.
C)0.847 g/mL.
D)1.2 g/mL.
E)1.18 g/mL.

Question 68

Round off each of the following to three significant figures.
8.3158

Question 69

The density of a solution is 0.847 g/mL. Its specific gravity is

A)1.2.
B)11.8.
C)1.18.
D)0.118.
E)0.847.

Question 70

A 50.0 mL urine sample has a mass of 50.7 g. The specific gravity of the urine is

A)50.7.
B)1.014 g/mL.
C)0.986.
D)1.01.
E)0.986 g/L.