Question 1

At constant temperature, the pressure on a 10.0 L sample of gas is changed from 1140 torr to 1.00 atm. 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 2

Which of the following intermolecular forces are found between the temporary induced positive end of a dipole and the temporary induced negative end of another temporary dipole?

Accepted Answer

A)  London dispersion forces 
B)  Hydrogen bonds 
C)  Covalent bonds 
D)  Dipole-dipole interactions 
A)  London dispersion forces 
B)  Hydrogen bonds 
C)  Covalent bonds 
D)  Dipole-dipole interactions

Question 3

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

Accepted Answer

A)  C4H10 
B)  C3H6O 
C)  both C4H10 and C3H6O 
D)  neither C4H10 or C3H6O 
A)  C4H10 
B)  C3H6O 
C)  both C4H10 and C3H6O 
D)  neither C4H10 or C3H6O

Question 4

Which of the following instruments is used to measure atmospheric pressure?

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 5

Which of the following are measures of standard temperature and pressure?

Accepted Answer

A)  0°C and 1 atm 
B)  0°F and 1 atm 
C)  0 K and 1 atm 
D)  none of these 
A)  0°C and 1 atm 
B)  0°F and 1 atm 
C)  0 K and 1 atm 
D)  none of these

Question 6

At what point is the vapor pressure of a liquid measured?

Accepted Answer

A)  When molecules escape from the liquid more rapidly than they are recaptured by the liquid. 
B)  When molecules are recaptured by the liquid more rapidly than they escape from the liquid. 
C)  When molecules escape and are recaptured at the same rate. 
D)  When the liquid totally converts to vapor. 
A)  When molecules escape from the liquid more rapidly than they are recaptured by the liquid. 
B)  When molecules are recaptured by the liquid more rapidly than they escape from the liquid. 
C)  When molecules escape and are recaptured at the same rate. 
D)  When the liquid totally converts to vapor.

Question 7

A gas expands from an initial volume of 20.5 L at 0.92 atm and 23°C to a final volume of 34.6 L. During the expansion, the gas cools to 12°C. Calculate the final pressure of the gas.

Accepted Answer

A)  0.28 atm 
B)  0.52 atm 
C)  0.57 atm 
D)  1.9 atm 
A)  0.28 atm 
B)  0.52 atm 
C)  0.57 atm 
D)  1.9 atm

Question 8

A tank contains N2 at 2.5 atm and O2 at 1.5 atm. An unknown quantity of CO2 is added until the total pressure within the tank is 5.5 atm. Calculate the partial pressure of CO2 in the tank.

Accepted Answer

A)  5.5 atm 
B)  3.5 atm 
C)  1.5 atm 
D)  2.5 atm 
A)  5.5 atm 
B)  3.5 atm 
C)  1.5 atm 
D)  2.5 atm

Question 9

Which of the following factors affects the vapor pressure of a liquid?

Accepted Answer

A)  the mass of the sample 
B)  the shape of the sample 
C)  the temperature of the sample 
D)  the volume of the sample 
A)  the mass of the sample 
B)  the shape of the sample 
C)  the temperature of the sample 
D)  the volume of the sample

Question 10

Which of the following gas laws is related to the process of respiration?

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 11

A vessel under 2.015 atm pressure containing nitrogen and water vapor has a total pressure of 2.015 atm. The partial pressure of N2 is 1.908 atm. Calculate the partial pressure of the water vapor.

Accepted Answer

A)  0.107 atm 
B)  1.908 atm 
C)  2.015 atm 
D)  3.923 atm 
A)  0.107 atm 
B)  1.908 atm 
C)  2.015 atm 
D)  3.923 atm

Question 12

Which of the following does not affect the boiling point of a liquid?

Accepted Answer

A)  the number of sites for intermolecular interactions 
B)  the shape of the liquid molecules 
C)  the types of intermolecular forces between the liquid molecules 
D)  All of these affect the boiling point. 
A)  the number of sites for intermolecular interactions 
B)  the shape of the liquid molecules 
C)  the types of intermolecular forces between the liquid molecules 
D)  All of these affect the boiling point.

Question 13

Suppose a balloon is filled so that its volume is 2.00 L when the pressure is 750 torr and the temperature is 24°C. What is the volume of the balloon when it rises to an elevation where the pressure is 375 torr and the temperature is 12°C?

Accepted Answer

A)  0.261 L 
B)  0.500 L 
C)  2.00 L 
D)  3.84 L 
A)  0.261 L 
B)  0.500 L 
C)  2.00 L 
D)  3.84 L

Question 14

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 sample contains the largest number of atoms?

Accepted Answer

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

Question 15

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

Accepted Answer

A)  0.33 L 
B)  0.67 L 
C)  1.5 L 
D)  3.0 L 
A)  0.33 L 
B)  0.67 L 
C)  1.5 L 
D)  3.0 L

Question 16

At constant pressure, the temperature of a 3 L liquid is 56°C. Calculate the temperature if the volume of the liquid changes to 5 L.

Accepted Answer

A)  93 K 
B)  548 K 
C)  349°C 
D)  440°C 
A)  93 K 
B)  548 K 
C)  349°C 
D)  440°C

Question 17

Which of the following is not an example of an intermolecular attractive force?

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 18

At constant pressure, the temperature of a 4.00 L sample of gas is increased from 25°C to 50°C. Calculate 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

Which type of intermolecular attraction exists between 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 20

A certain quantity of neon gas is under 1.05 atm pressure at 303 K in a 10.0 L vessel. How many moles of neon are present in the neon gas?

Accepted Answer

A)  0.222 mol 
B)  0.402 mol 
C)  0.422 mol 
D)  2.37 mol 
A)  0.222 mol 
B)  0.402 mol 
C)  0.422 mol 
D)  2.37 mol

Exam 5: Gases, Liquids, and Solids

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

Which of the following intermolecular forces are found between the temporary induced positive end of a dipole and the temporary induced negative end of another temporary dipole?

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

Which of the following instruments is used to measure atmospheric pressure?

Which of the following are measures of standard temperature and pressure?

At what point is the vapor pressure of a liquid measured?

A gas expands from an initial volume of 20.5 L at 0.92 atm and 23°C to a final volume of 34.6 L. During the expansion, the gas cools to 12°C. Calculate the final pressure of the gas.

A tank contains N2 at 2.5 atm and O2 at 1.5 atm. An unknown quantity of CO2 is added until the total pressure within the tank is 5.5 atm. Calculate the partial pressure of CO2 in the tank.

Which of the following factors affects the vapor pressure of a liquid?

Which of the following gas laws is related to the process of respiration?

A vessel under 2.015 atm pressure containing nitrogen and water vapor has a total pressure of 2.015 atm. The partial pressure of N2 is 1.908 atm. Calculate the partial pressure of the water vapor.

Which of the following does not affect the boiling point of a liquid?

Suppose a balloon is filled so that its volume is 2.00 L when the pressure is 750 torr and the temperature is 24°C. What is the volume of the balloon when it rises to an elevation where the pressure is 375 torr and the temperature is 12°C?

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 sample contains the largest number of atoms?

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

At constant pressure, the temperature of a 3 L liquid is 56°C. Calculate the temperature if the volume of the liquid changes to 5 L.

Which of the following is not an example of an intermolecular attractive force?

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

Which type of intermolecular attraction exists between molecules?

A certain quantity of neon gas is under 1.05 atm pressure at 303 K in a 10.0 L vessel. How many moles of neon are present in the neon gas?

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 tank contains N₂ at 2.5 atm and O₂ at 1.5 atm. An unknown quantity of CO₂ is added until the total pressure within the tank is 5.5 atm. Calculate the partial pressure of CO₂ in the tank.

A vessel under 2.015 atm pressure containing nitrogen and water vapor has a total pressure of 2.015 atm. The partial pressure of N₂ is 1.908 atm. Calculate the partial pressure of the water vapor.

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 sample contains the largest number of atoms?