Question 1

Given the calculation: 1.987 × 6.02 = ?, what is the answer reported to the correct number of significant figures?

Accepted Answer

A)  11.96174 
B)  11.96 
C)  12.0 
D)  12 
A)  11.96174 
B)  11.96 
C)  12.0 
D)  12 C

Question 2

Which of the following is true of ice, water, and steam?

Accepted Answer

A)  They are three different chemical substances. 
B)  They are the same substance in different chemical states. 
C)  They are the same substance in different physical states. 
D)  They are the same substance in different chemical and physical states. 
A)  They are three different chemical substances. 
B)  They are the same substance in different chemical states. 
C)  They are the same substance in different physical states. 
D)  They are the same substance in different chemical and physical states. C

Question 3

How many kilometers (km) are there is 1 megameter (Mm)?

Accepted Answer

A)  1 × 10-2 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 102 
A)  1 × 10-2 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 102 C

Question 4

Which of the following is the correct order of lengths?

Accepted Answer

A)  nm < mm < cm < μm 
B)  cm < nm < μm < mm 
C)  nm < μm < cm < m 
D)  μm < nm < cm < mm 
A)  nm < mm < cm < μm 
B)  cm < nm < μm < mm 
C)  nm < μm < cm < m 
D)  μm < nm < cm < mm

Question 5

Iron has a density of 7.874 g/cm3. What is the volume of a block of iron that weighs 15.321 g?

Accepted Answer

A)  0.008289 cm3 
B)  0.5139 cm3 
C)  1.946 cm3 
D)  120.6 cm3 
A)  0.008289 cm3 
B)  0.5139 cm3 
C)  1.946 cm3 
D)  120.6 cm3

Question 6

How many kilojoules (kJ) are there in 1 joule (J)?

Accepted Answer

A)  1 × 10-6 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 106 
A)  1 × 10-6 
B)  1 × 10-3 
C)  1 × 103 
D)  1 × 106

Question 7

In Europe, the areas of apartments are typically listed in square meters (m2). If the area of an American apartment is 1.6 × 103 ft2, a Paris apartment with which of the following areas has roughly the same area as the New York apartment? [1 meter = 1.094 yards]

Accepted Answer

A)  120 m2 
B)  178 m2 
C)  149 m2 
D)  160 m2 
A)  120 m2 
B)  178 m2 
C)  149 m2 
D)  160 m2

Question 8

Consider the separatory funnel shown below; it contains two liquids. Water is placed in the funnel along with one of the following liquids: diethyl ether, mineral oil, or dichloromethane. The funnel is then opened, and the bottom layer is drained into a beaker. For which combination would the water end up in the beaker? Density values are given in parentheses.

Accepted Answer

A)  diethyl ether (0.713 g/mL) 
B)  mineral oil (0.845 g/mL) 
C)  dichloromethane (1.33 g/mL) 
D)  both a and b 
A)  diethyl ether (0.713 g/mL) 
B)  mineral oil (0.845 g/mL) 
C)  dichloromethane (1.33 g/mL) 
D)  both a and b

Question 9

Given the calculation: 5.63 + 2.302 + 3.1 = ?, what is the answer reported to the correct number of significant figures?

Accepted Answer

A)  11.032 
B)  11.03 
C)  11.0 
D)  11.1 
A)  11.032 
B)  11.03 
C)  11.0 
D)  11.1

Question 10

A studio apartment in Paris has an area of 81.0 square meters. A New York apartment with which of the following areas has the roughly the same area as the Paris apartment? [1 meter = 1.094 yards]

Accepted Answer

A)  900 square feet 
B)  886 square feet 
C)  775 square feet 
D)  872 square feet 
A)  900 square feet 
B)  886 square feet 
C)  775 square feet 
D)  872 square feet

Question 11

In determining the density of a liquid, the following measurement was made. How many significant figures are shown in this measurement?

Accepted Answer

A)  5 
B)  4 
C)  3 
D)  none of these 
A)  5 
B)  4 
C)  3 
D)  none of these

Question 12

Which of the following represents a physical change?

Accepted Answer

A)  boiling of water 
B)  decomposition of a dead organism 
C)  both boiling of water and decomposition of a dead organism 
D)  neither boiling of water or decomposition of a dead organism 
A)  boiling of water 
B)  decomposition of a dead organism 
C)  both boiling of water and decomposition of a dead organism 
D)  neither boiling of water or decomposition of a dead organism

Question 13

How many kiloliters (kL) are there in 1 microliter (μL)?

Accepted Answer

A)  1 × 10-6 
B)  1 × 10-9 
C)  1 × 109 
D)  1 × 106 
A)  1 × 10-6 
B)  1 × 10-9 
C)  1 × 109 
D)  1 × 106

Question 14

An object weighs 70.7 kg. What is the weight of this object in the English system? [1 pound = 453.6 grams]

Accepted Answer

A)  32.07 pounds 
B)  155.86 pounds 
C)  1.56 pounds 
D)  524.3 pounds 
A)  32.07 pounds 
B)  155.86 pounds 
C)  1.56 pounds 
D)  524.3 pounds

Question 15

Which of the following is synonymous with "fact"?

Accepted Answer

A)  a hypothesis 
B)  an observation that is reproducible 
C)  an observation that is not reproducible 
D)  none of these 
A)  a hypothesis 
B)  an observation that is reproducible 
C)  an observation that is not reproducible 
D)  none of these

Question 16

Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.37 g/L. What is the mass, in pounds, of 1.00 quart of xenon? [1 liter = 1.057 quart; 1 pound = 453.6 grams]

Accepted Answer

A)  0.0112 lb 
B)  0.0125 lb 
C)  79.9 lb 
D)  89.3 lb 
A)  0.0112 lb 
B)  0.0125 lb 
C)  79.9 lb 
D)  89.3 lb

Question 17

A jeweler offers a pure gold coin of 2 g to a customer. What is the volume of the coin? (Take the density of gold to be 19.3 g/cm3.)

Accepted Answer

A)  0.404 cm3 
B)  0.104 cm3 
C)  9.65 cm3 
D)  38.6 cm3 
A)  0.404 cm3 
B)  0.104 cm3 
C)  9.65 cm3 
D)  38.6 cm3

Question 18

The dimensions of a piece of wood are 3.4 meters x 10 cm x 175 mm. What is the volume of this piece of wood?

Accepted Answer

A)  5.95 × 10-2 mm3 
B)  5.95 × 103 cm3 
C)  5.95 × 10-3 cm3 
D)  5.95 × 10-2 m3 
A)  5.95 × 10-2 mm3 
B)  5.95 × 103 cm3 
C)  5.95 × 10-3 cm3 
D)  5.95 × 10-2 m3

Question 19

Which of the following is the largest unit of mass among the given units?

Accepted Answer

A)  kilogram 
B)  megagram 
C)  gigagram 
D)  decigram 
A)  kilogram 
B)  megagram 
C)  gigagram 
D)  decigram

Question 20

An intern made an error and gave a patient a dose of 600 μg rather than 60 mg of a drug. Which of the following is true?

Accepted Answer

A)  The patient received an overdose by a factor of 100. 
B)  The patient received an overdose by a factor of 1000. 
C)  The patient received an underdose by a factor of 100. 
D)  The patient received an underdose by a factor of 1000. 
A)  The patient received an overdose by a factor of 100. 
B)  The patient received an overdose by a factor of 1000. 
C)  The patient received an underdose by a factor of 100. 
D)  The patient received an underdose by a factor of 1000.

Exam 1: Matter, Energy, and Measurement

Given the calculation: 1.987 × 6.02 = ?, what is the answer reported to the correct number of significant figures?

Which of the following is true of ice, water, and steam?

How many kilometers (km) are there is 1 megameter (Mm)?

Which of the following is the correct order of lengths?

Iron has a density of 7.874 g/cm3. What is the volume of a block of iron that weighs 15.321 g?

How many kilojoules (kJ) are there in 1 joule (J)?

In Europe, the areas of apartments are typically listed in square meters (m2). If the area of an American apartment is 1.6 × 103 ft2, a Paris apartment with which of the following areas has roughly the same area as the New York apartment? [1 meter = 1.094 yards]

Given the calculation: 5.63 + 2.302 + 3.1 = ?, what is the answer reported to the correct number of significant figures?

A studio apartment in Paris has an area of 81.0 square meters. A New York apartment with which of the following areas has the roughly the same area as the Paris apartment? [1 meter = 1.094 yards]

In determining the density of a liquid, the following measurement was made. How many significant figures are shown in this measurement?

Which of the following represents a physical change?

How many kiloliters (kL) are there in 1 microliter (μL)?

An object weighs 70.7 kg. What is the weight of this object in the English system? [1 pound = 453.6 grams]

Which of the following is synonymous with "fact"?

Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.37 g/L. What is the mass, in pounds, of 1.00 quart of xenon? [1 liter = 1.057 quart; 1 pound = 453.6 grams]

A jeweler offers a pure gold coin of 2 g to a customer. What is the volume of the coin? (Take the density of gold to be 19.3 g/cm3.)

The dimensions of a piece of wood are 3.4 meters x 10 cm x 175 mm. What is the volume of this piece of wood?

Which of the following is the largest unit of mass among the given units?

An intern made an error and gave a patient a dose of 600 μg rather than 60 mg of a drug. Which of the following is true?

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Immunochemistry

Body Fluids

Filters

Iron has a density of 7.874 g/cm³. What is the volume of a block of iron that weighs 15.321 g?

In Europe, the areas of apartments are typically listed in square meters (m²). If the area of an American apartment is 1.6 × 10³ ft², a Paris apartment with which of the following areas has roughly the same area as the New York apartment? [1 meter = 1.094 yards]

A jeweler offers a pure gold coin of 2 g to a customer. What is the volume of the coin? (Take the density of gold to be 19.3 g/cm³.)