Question 1

Which of the following molecules can have only London dispersion forces?

Accepted Answer

A)  CH4 
B)  CO2 
C)  both a and b 
D)  neither a nor b 
A)  CH4 
B)  CO2 
C)  both a and b 
D)  neither a nor b

Question 2

Which law relates the pressure and temperature of a gas under conditions of constant volume?

Accepted Answer

A)  Boyle's law 
B)  Charles's law 
C)  Dalton's law 
D)  Gay-Lussac's law 
A)  Boyle's law 
B)  Charles's law 
C)  Dalton's law 
D)  Gay-Lussac's law

Question 3

Which law relates the volume and pressure of a gas under conditions of constant temperature?

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 4

The heat of vaporization of water is 540 cal/g. What mass of water at 100°C can be vaporized by the addition of 45.0 kcal of heat?

Accepted Answer

A)  0.0120 g 
B)  0.0833 g 
C)  12.0 g 
D)  83.3 g 
A)  0.0120 g 
B)  0.0833 g 
C)  12.0 g 
D)  83.3 g

Question 5

Which law 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 6

What is the volume occupied by an 8.00 gram 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 7

Which type of intermolecular attraction exists for all molecules?

Accepted Answer

A)  covalent bonding 
B)  dipole-dipole interactions 
C)  London dispersion forces 
D)  hydrogen bonding 
A)  covalent bonding 
B)  dipole-dipole interactions 
C)  London dispersion forces 
D)  hydrogen bonding

Question 8

Which of the following type of solid is characterized by the least order?

Accepted Answer

A)  amorphous 
B)  ionic 
C)  molecular 
D)  network covalent 
A)  amorphous 
B)  ionic 
C)  molecular 
D)  network covalent

Question 9

Which of the following pairs do not engage in hydrogen bonding?

Accepted Answer

A)  H2O with NH3 
B)  H2O with H2O 
C)  NH3 with NH3 
D)  None, they all engage in hydrogen bonding. 
A)  H2O with NH3 
B)  H2O with H2O 
C)  NH3 with NH3 
D)  None, they all engage in hydrogen bonding.

Question 10

Which of the following pairs engage in hydrogen bonding?

Accepted Answer

A)  water with acetone (CH3COCH3) 
B)  water with butane (CH3CH2CH2CH3) 
C)  both a and b 
D)  neither a nor b 
A)  water with acetone (CH3COCH3) 
B)  water with butane (CH3CH2CH2CH3) 
C)  both a and b 
D)  neither a nor b

Question 11

Which of the following is an example of an ionic solid?

Accepted Answer

A)  diamond 
B)  dry ice 
C)  sodium 
D)  sodium chloride 
A)  diamond 
B)  dry ice 
C)  sodium 
D)  sodium chloride

Question 12

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear)  
-Crossing the curve designated AD in the direction of high pressure to low pressure is associated with which of the following phase transitions?

Accepted Answer

A)  solid to liquid 
B)  solid to vapor 
C)  liquid to vapor 
D)  vapor to solid 
A)  solid to liquid 
B)  solid to vapor 
C)  liquid to vapor 
D)  vapor to solid

Question 13

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear)  
-Consider the following model.   This substance would most likely be classified as what type of solid?

Accepted Answer

A)  amorphous 
B)  crystalline 
C)  allotrope 
D)  nanotube 
A)  amorphous 
B)  crystalline 
C)  allotrope 
D)  nanotube

Question 14

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear)  
-Consider the following forms of carbon.   When compared to diamond, these substances would fit into which of the following classifications?

Accepted Answer

A)  allotropes 
B)  isotopes 
C)  amorphous forms 
D)  The different forms shown do not fit into the same classification. 
A)  allotropes 
B)  isotopes 
C)  amorphous forms 
D)  The different forms shown do not fit into the same classification.

Question 15

A student obtained experimental data and plotted it graphically, but forgot to label the axes of the graph. How should the axes of the graph shown here be labeled?

Accepted Answer

A)  the x-axis is the T and the y-axis is V 
B)  the x-axis is the T and the y-axis is P 
C)  the x-axis is the P and the y-axis is V 
D)  the x-axis is the P and the y-axis is T 
A)  the x-axis is the T and the y-axis is V 
B)  the x-axis is the T and the y-axis is P 
C)  the x-axis is the P and the y-axis is V 
D)  the x-axis is the P and the y-axis is T

Question 16

Which of the following is not an example of an intermolecular attraction?

Accepted Answer

A)  covalent bonding 
B)  dipole-dipole interactions 
C)  London dispersion forces 
D)  hydrogen bonding 
A)  covalent bonding 
B)  dipole-dipole interactions 
C)  London dispersion forces 
D)  hydrogen bonding

Question 17

At constant pressure the temperature of a 4.00 L sample of gas is increased from 300. K to 400. K. What is the new volume of the gas sample?

Accepted Answer

A)  0.188 L 
B)  0.300 L 
C)  3.33 L 
D)  5.33 L 
A)  0.188 L 
B)  0.300 L 
C)  3.33 L 
D)  5.33 L

Question 18

At constant pressure the temperature of a 4.00 L sample of gas is increased from 25 °C to 50.°C. What is the new volume of the gas sample?

Accepted Answer

A)  2.00 L 
B)  3.69 L 
C)  4.34 L 
D)  8.00 L 
A)  2.00 L 
B)  3.69 L 
C)  4.34 L 
D)  8.00 L

Question 19

A student has equal-volume samples of three gases. All the gases are at the same temperature and pressure. If the three gases are O2, CO2, NH3, which sample contains the largest number of molecules?

Accepted Answer

A)  O2 
B)  CO2 
C)  NH3 
D)  None, they all contain the same number of molecules. 
A)  O2 
B)  CO2 
C)  NH3 
D)  None, they all contain the same number of molecules.

Question 20

Which of the following is a mathematical statement of the combined gas law?

Accepted Answer

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

Exam 5: Gases, Liquids, and Solids

Which of the following molecules can have only London dispersion forces?

Which law relates the pressure and temperature of a gas under conditions of constant volume?

Which law relates the volume and pressure of a gas under conditions of constant temperature?

The heat of vaporization of water is 540 cal/g. What mass of water at 100°C can be vaporized by the addition of 45.0 kcal of heat?

Which law applies only to mixtures of gases?

What is the volume occupied by an 8.00 gram sample of molecular oxygen at STP?

Which type of intermolecular attraction exists for all molecules?

Which of the following type of solid is characterized by the least order?

Which of the following pairs do not engage in hydrogen bonding?

Which of the following pairs engage in hydrogen bonding?

Which of the following is an example of an ionic solid?

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear) -Crossing the curve designated AD in the direction of high pressure to low pressure is associated with which of the following phase transitions?

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear) -Consider the following model. This substance would most likely be classified as what type of solid?

Consider the following phase diagram of water. The temperature and pressure scales are greatly reduced (and are non-linear) -Consider the following forms of carbon. When compared to diamond, these substances would fit into which of the following classifications?

A student obtained experimental data and plotted it graphically, but forgot to label the axes of the graph. How should the axes of the graph shown here be labeled?

Which of the following is not an example of an intermolecular attraction?

At constant pressure the temperature of a 4.00 L sample of gas is increased from 300. K to 400. K. What is the new volume of the gas sample?

At constant pressure the temperature of a 4.00 L sample of gas is increased from 25 °C to 50.°C. What is the new volume of the gas sample?

A student has equal-volume samples of three gases. All the gases are at the same temperature and pressure. If the three gases are O2, CO2, NH3, which sample contains the largest number of molecules?

Which of the following is a mathematical statement of the combined gas law?

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 and Alkynes

Benzene and Its Derivatives

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 equal-volume samples of three gases. All the gases are at the same temperature and pressure. If the three gases are O₂, CO₂, NH₃, which sample contains the largest number of molecules?