Deck 1: Chemistry and Measurements

Question 1

In order to enhance your learning in chemistry, you should not __________.

A) study a little every day
B) form a study group
C) go to office hours
D) be an active learner
E) wait until the night before the exam to study

Answer 1

wait until the night before the exam to study

Question 2

The branch of chemistry that is the study of the composition, properties, and reactions of matter is called

A) organic chemistry
B) geochemistry
C) physical chemistry
D) biological chemistry
E) general chemistry

Answer 2

general chemistry

Question 3

A value of 345 mm is a measure of

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

Answer 3

distance

Question 4

The measurement of the gravitational pull on an object is its

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

Question 5

In this list, which substance can be classified as a chemical?

A) salt
B) sleep
C) cold
D) heat
E) temperature

Question 6

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

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

Question 7

The metric base unit for length is the

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

Question 8

A value of 36 mL is a measure of

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

Question 9

The branch of chemistry that is the study of the reactions that take place in biological systems is called

A) organic chemistry
B) geochemistry
C) physical chemistry
D) biological chemistry
E) general chemistry

Question 10

Which of the following is a chemical?

A) sugar
B) heat
C) light
D) noise
E) a wave

Question 11

Titanium dioxide is a chemical used in toothpaste to __________.

A) make the paste white
B) disinfect the toothbrush
C) keep the paste from spoiling
D) remove plaque
E) strengthen tooth enamel

Question 12

Which of the following would not be part of a study plan to learn chemistry?

A) study a little every day
B) skip your instructor's office hours
C) form a study group
D) read the chapter before class
E) work the sample problems

Question 13

The branch of chemistry that is the study of compounds containing carbon is called

A) organic chemistry
B) geochemistry
C) physical chemistry
D) biochemistry
E) general chemistry

Question 14

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

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

Question 15

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

A) oz
B) lb
C) Celsius
D) kilogram
E) meter

Question 16

The metric unit for volume is the

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

Question 17

A value of 25 °C is a measurement of

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

Question 18

The amount of space occupied by a substance is its

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

Question 19

One way to enhance your learning in chemistry is to __________.

A) study a little every day
B) form a study group
C) go to office hours
D) be an active learner
E) all the above

Question 20

Which of the following is not a chemical?

A) salt
B) sound
C) sugar
D) zinc
E) silver

Question 21

Which of the following has the smallest mass?

A) 4.0 × 10-6 g
B) 4.0 × 109 ng
C) 4.0 × 10-2 μg
D) 4.0 × 10-3 kg
E) 4.0 × 10-6 mm

Question 22

Which of the following numbers is the largest?

A) 2.05 ×103
B) 2.05 × 10-12
C) 2.05 × 105
D) 2.05 × 108
E) 2.05

Question 23

Significant figures are important because they indicate

A) the accuracy of a measurement.
B) the number of digits on a calculator.
C) the number of measurements.
D) the precision of a measurement.
E) the accuracy of the conversion factor.

Question 24

Which of the following measurements has three significant figures?

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

Question 25

The number 680 000 000 expressed correctly using scientific notation is

A) 6.8 10^-7.
B) 0.68 × 10⁶.
C) 6.8 × 10⁸.
D) 68 × 10⁷.
E) 680 × 10⁶.

Question 26

Which of the following numbers is the smallest?

A) 4.0 × 10-6
B) 4.0 × 10-8
C) 4.0 × 10-2
D) 4.0 × 1015
E) 4.0 × 10-12

Question 27

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

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

Question 28

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

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

Question 29

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

A) 2.543 m × $\frac { 39.4 \mathrm { in } } { 1 \mathrm {~m} }$ = 100.1942 in
B) 2 L × $\frac { 1.06 \mathrm { qt } } { 1 \mathrm {~L} }$ = 2.12 qt
C) 24.95 min × $\frac { 1 \mathrm { hr } } { 60 \mathrm {~min} }$ = 0.4158 hr
D) 12.0 ft × $\frac { 12 \mathrm { in } } { 1 \mathrm { ft } }$ × $\frac { 2.54 \mathrm {~cm} } { 1 \mathrm { in } }$ = 370 cm
E) 24.0 kg × $\frac { 11 \mathrm {~b} } { 2.20 \mathrm {~kg} }$ = 11 lb

Question 30

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

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

Question 31

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

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

Question 32

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

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

Question 33

When 2610 + 11.7 + 0.22 are added, the answer to the correct number of decimal places is __________.

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

Question 34

The measurement 0.000 0043 m, expressed correctly using scientific notation, is

A) 4.3 × 10-7 m.
B) 4.3 × 10-6 m.
C) 4.3 × 106 m.
D) 0.43 × 10-5 m.
E) 4.3 m.

Question 35

5.21 cm is the same distance as

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

Question 36

How many significant figures are in the number 0.00208?

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

Question 37

A researcher needed three samples of sodium chloride solution, each with a volume of 0.03510 mL. The total volume needed should be reported as

A) 0.105 mL.
B) 0.0105 mL.
C) 0.10 mL.
D) 0.1053 mL.
E) 0.1100 mL.

Question 38

Which of the following conversion factors is a measured number?

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

Question 39

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

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

Question 40

What is the correct answer for the calculation of a volume (in mL) with measured numbers $\frac { 28.58 } { 16 \times 8.02 }$ ?

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

Question 41

How many pounds are in 3.5 kg?

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

Question 42

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

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

Question 43

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

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

Question 44

How many kilograms are in 30.4 lb?

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

Question 45

Which of the following is the smallest unit?

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

Question 46

What is 6.5 m converted to inches?

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

Question 47

Which of the following is the largest unit?

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

Question 48

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

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

Question 49

9.31 g is the same mass as

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

Question 50

Carrots are $0.79 per pound. What is the cost of 1.20 kg of carrots?

A) $2.10
B) $0.43
C) $1.45
D) $0.79
E) $0.95

Question 51

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

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

Question 52

How many centimeters are there in 57.0 in.?

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

Question 53

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

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

Question 54

What is the metric relationship between grams and micrograms?

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

Question 55

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

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

Question 56

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

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

Question 57

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

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

Question 58

Which of the following measurements are NOT equivalent?

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

Question 59

Which of the following setups would convert centimeters to feet?

A) cm × $\frac { 2.54 \mathrm { in } } { 1 \mathrm {~cm} }$ × $\frac { 1 \mathrm { ft } } { 12 \mathrm { in } . }$ .

B) cm × $\frac { 2.54 \mathrm {~cm} } { 1 \mathrm { in } }$ × $\frac { 12 \mathrm { in } } { 1 \mathrm { ft } }$ .

C) cm × $\frac { 1 \mathrm { in } . } { 2.54 \mathrm {~cm} }$ × $\frac { 1 \mathrm { ft } } { 12 \mathrm { in } . }$ .

D) cm × $\frac { 1 \mathrm { in } . } { 2.54 \mathrm {~cm} }$ × $\frac { 12 \mathrm { in } } { 1 \mathrm { ft } }$ .

E) cm × $\frac { 2.54 \mathrm { in } } { 1 \mathrm {~cm} }$ × $\frac { 1 \mathrm { ft } } { 12 \mathrm { in } . }$

Question 60

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

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

Question 61

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

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

Question 62

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

Question 63

The density of a solution is 1.18 g/mL. Its specific gravity is

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

Question 64

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

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

Question 65

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

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

Question 66

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

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

Question 67

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) balsa wood (density = 0.16 g/mL)
C) sugar (density = 1.59 g/mL)
D) aluminum (density = 2.70 g/mL)
E) mercury (density = 13.6 g/mL)

Question 68

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

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

Question 69

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

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

Question 70

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

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

Question 71

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

Question 72

How many kilograms are in 30.4 lb?

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

Question 73

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

Question 74

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) 6.77 g/mL
C) 1.00 g/mL
D) 0.0518 g/mL
E) 19.3 g/mL

Question 75

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

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

Question 76

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

A) Yes
B) No

Question 77

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

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