Question 1

Which of the following is true of hydrogen bonding?

Accepted Answer

A)  Compounds that contain H-O, H-F, or H-N bonds show hydrogen bonding. 
B)  Compounds that contain H-S, H-Cl, or H-P bonds show hydrogen bonding. 
C)  Both of these are true. 
D)  None of these are true. 
A)  Compounds that contain H-O, H-F, or H-N bonds show hydrogen bonding. 
B)  Compounds that contain H-S, H-Cl, or H-P bonds show hydrogen bonding. 
C)  Both of these are true. 
D)  None of these are true.

Question 2

Which of the following directly determine the physical state of a substance at a given temperature?

Accepted Answer

A)  covalent bonds 
B)  intermolecular forces 
C)  intramolecular forces 
D)  nuclear forces 
A)  covalent bonds 
B)  intermolecular forces 
C)  intramolecular forces 
D)  nuclear forces

Question 3

Which of the following is true if the mercury level is the same on both sides of the J tube in a manometer?

Accepted Answer

A)  The gas pressure is higher than the atmospheric pressure. 
B)  The gas pressure is lower than the atmospheric pressure. 
C)  The gas pressure is equal to the atmospheric pressure. 
D)  The volume of the gas is directly proportional to atmospheric pressure. 
A)  The gas pressure is higher than the atmospheric pressure. 
B)  The gas pressure is lower than the atmospheric pressure. 
C)  The gas pressure is equal to the atmospheric pressure. 
D)  The volume of the gas is directly proportional to atmospheric pressure.

Question 4

What will happen when the temperature of a gas is decreased from 60 K to 30 K at constant pressure?

Accepted Answer

A)  The volume of the gas will double. 
B)  The volume of the gas will decrease by half. 
C)  The volume of the gas will decrease slightly. 
D)  The volume of the gas will increase slightly. 
A)  The volume of the gas will double. 
B)  The volume of the gas will decrease by half. 
C)  The volume of the gas will decrease slightly. 
D)  The volume of the gas will increase slightly.

Question 5

A student has three samples of gases that have equal volume. The three gases are O2, CO2, and NH3; all the gases are at the same temperature and pressure. Which of the following samples contains the largest number of molecules?

Accepted Answer

A)  O2 contains the largest number of molecules. 
B)  CO2 contains the largest number of molecules. 
C)  NH3 contains the largest number of molecules. 
D)  All three gas samples contain an equal number of molecules. 
A)  O2 contains the largest number of molecules. 
B)  CO2 contains the largest number of molecules. 
C)  NH3 contains the largest number of molecules. 
D)  All three gas samples contain an equal number of molecules.

Question 6

Which of the following might correspond to the O2 pressure in a hyperbaric chamber?

Accepted Answer

A)  160 torr 
B)  760 torr 
C)  1600 torr 
D)  none of these 
A)  160 torr 
B)  760 torr 
C)  1600 torr 
D)  none of these

Question 7

Which of the following molecules can have dipole-dipole interactions?

Accepted Answer

A)  CH4 
B)  CO2 
C)  both CH4 and CO2 
D)  neither CH4 or CO2 
A)  CH4 
B)  CO2 
C)  both CH4 and CO2 
D)  neither CH4 or CO2

Question 8

At constant temperature, the pressure on a 10.0 L sample of gas is changed from 1.00 atm to 1140 torr. Calculate the new volume of the gas sample.

Accepted Answer

A)  0.00877 L 
B)  6.67 L 
C)  15.0 L 
D)  114 L 
A)  0.00877 L 
B)  6.67 L 
C)  15.0 L 
D)  114 L

Question 9

Which of the following molecules cannot engage in hydrogen bonding?

Accepted Answer

A)  CH4 
B)  NH3 
C)  H2O 
D)  all of these 
A)  CH4 
B)  NH3 
C)  H2O 
D)  all of these

Question 10

Calculate the volume occupied by an 8-g sample of molecular oxygen at STP.

Accepted Answer

A)  5.60 L 
B)  11.2 L 
C)  22.4 L 
D)  44.8 L 
A)  5.60 L 
B)  11.2 L 
C)  22.4 L 
D)  44.8 L

Question 11

Which of the following laws applies only to mixtures of gases?

Accepted Answer

A)  Avogadro's law 
B)  Boyle's law 
C)  Charles's law 
D)  Dalton's law 
A)  Avogadro's law 
B)  Boyle's law 
C)  Charles's law 
D)  Dalton's law

Question 12

Which of the following is a mathematical representation of Boyle's law?

Accepted Answer

A)  P1V2 = P2V1 
B)  P1V1 = P2V2 
C)  P1/T2 = P2/T1 
D)  P1/T1 = P2/T2 
A)  P1V2 = P2V1 
B)  P1V1 = P2V2 
C)  P1/T2 = P2/T1 
D)  P1/T1 = P2/T2

Question 13

How does the vapor pressure of a liquid change when the temperature of the liquid increases?

Accepted Answer

A)  The vapor pressure decreases. 
B)  The vapor pressure increases. 
C)  The vapor pressure remains the same. 
D)  Whether the vapor pressure increases or decreases depends on the nature of the liquid. 
A)  The vapor pressure decreases. 
B)  The vapor pressure increases. 
C)  The vapor pressure remains the same. 
D)  Whether the vapor pressure increases or decreases depends on the nature of the liquid.

Question 14

Which of the following molecules can engage in hydrogen bonding?

Accepted Answer

A)  NH3 
B)  H2O 
C)  HF 
D)  all of these 
A)  NH3 
B)  H2O 
C)  HF 
D)  all of these

Question 15

Which of the following increases when the number of collisions per unit time increases for a gas in a container?

Accepted Answer

A)  volume 
B)  density 
C)  pressure 
D)  attractive force between the molecules 
A)  volume 
B)  density 
C)  pressure 
D)  attractive force between the molecules

Question 16

Which of the following increases as temperature increases?

Accepted Answer

A)  kinetic energy 
B)  intermolecular attractive forces 
C)  molecular weight 
D)  none of these 
A)  kinetic energy 
B)  intermolecular attractive forces 
C)  molecular weight 
D)  none of these

Question 17

At constant temperature, the pressure on a 6.0 L sample of a gas is reduced from 2.0 atm to 1.0 atm. Calculate the new volume of the gas sample.

Accepted Answer

A)  0.083 L 
B)  0.33 L 
C)  3.0 L 
D)  12 L 
A)  0.083 L 
B)  0.33 L 
C)  3.0 L 
D)  12 L

Question 18

Which of the following instruments is used to measure the pressure of a gas sample in a container?

Accepted Answer

A)  an altimeter 
B)  a barometer 
C)  a manometer 
D)  a thermometer 
A)  an altimeter 
B)  a barometer 
C)  a manometer 
D)  a thermometer

Question 19

Which of the following laws relates the volume and the number of molecules of a gas when temperature and pressure are kept constant?

Accepted Answer

A)  Avogadro's law 
B)  Boyle's law 
C)  Charles's law 
D)  Dalton's law 
A)  Avogadro's law 
B)  Boyle's law 
C)  Charles's law 
D)  Dalton's law

Question 20

Which of the following molecules can engage in hydrogen bonding?

Accepted Answer

A)  HF 
B)  HCl 
C)  HBr 
D)  HI 
A)  HF 
B)  HCl 
C)  HBr 
D)  HI

Exam 5: Gases, Liquids, and Solids

Which of the following is true of hydrogen bonding?

Which of the following directly determine the physical state of a substance at a given temperature?

Which of the following is true if the mercury level is the same on both sides of the J tube in a manometer?

What will happen when the temperature of a gas is decreased from 60 K to 30 K at constant pressure?

A student has three samples of gases that have equal volume. The three gases are O2, CO2, and NH3; all the gases are at the same temperature and pressure. Which of the following samples contains the largest number of molecules?

Which of the following might correspond to the O2 pressure in a hyperbaric chamber?

Which of the following molecules can have dipole-dipole interactions?

At constant temperature, the pressure on a 10.0 L sample of gas is changed from 1.00 atm to 1140 torr. Calculate the new volume of the gas sample.

Which of the following molecules cannot engage in hydrogen bonding?

Calculate the volume occupied by an 8-g sample of molecular oxygen at STP.

Which of the following laws applies only to mixtures of gases?

Which of the following is a mathematical representation of Boyle's law?

How does the vapor pressure of a liquid change when the temperature of the liquid increases?

Which of the following molecules can engage in hydrogen bonding?

Which of the following increases when the number of collisions per unit time increases for a gas in a container?

Which of the following increases as temperature increases?

At constant temperature, the pressure on a 6.0 L sample of a gas is reduced from 2.0 atm to 1.0 atm. Calculate the new volume of the gas sample.

Which of the following instruments is used to measure the pressure of a gas sample in a container?

Which of the following laws relates the volume and the number of molecules of a gas when temperature and pressure are kept constant?

Which of the following molecules can engage in hydrogen bonding?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

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

A student has three samples of gases that have equal volume. The three gases are O₂, CO₂, and NH₃; all the gases are at the same temperature and pressure. Which of the following samples contains the largest number of molecules?

Which of the following might correspond to the O₂ pressure in a hyperbaric chamber?