Question 1

A 22.4 g sample of O2 will occupy less than 22.4 L at STP.

Accepted Answer

A) True 
 B)False

Question 2

_____ are due to momentary changes in electron density in a molecule.

Accepted Answer

London dispersion fo

Question 3

When a sample of gas is heated from 80. °C to 160. °C at a constant pressure, the volume of the gas doubles.

Accepted Answer

A) True 
 B)False

Question 4

When the volume of a sample of gas is doubled and the Kelvin temperature is cut in half, the pressure of a sample remains constant.

Accepted Answer

A) True 
 B)False

Question 5

A scuba diver typically begins a dive with a compressed air tank at 2, 350 psi. What is this pressure expressed in units of mm Hg?

Accepted Answer

A) 160. mm Hg 
B) 3.09 mm Hg 
C) 1.21 × 105 mm Hg 
D) 1.79 × 106 mm Hg 
E) 45.5 mm Hg 
A) 160. mm Hg 
B) 3.09 mm Hg 
C) 1.21 × 105 mm Hg 
D) 1.79 × 106 mm Hg 
E) 45.5 mm Hg

Question 6

An aerosol spray can with a volume of 350 mL registers a pressure of 4.5 atm at room temperature. What happens to the pressure of the gas inside the can if the can is stored outside during the winter months?

Accepted Answer

A) The pressure of the gas will remain at 4.5 atm. 
B) The pressure of the gas will be greater than 4.5 atm. 
C) The pressure of the gas will be less than 4.5 atm. 
D) It is impossible to predict without knowing the amount of gas present inside the can. 
A) The pressure of the gas will remain at 4.5 atm. 
B) The pressure of the gas will be greater than 4.5 atm. 
C) The pressure of the gas will be less than 4.5 atm. 
D) It is impossible to predict without knowing the amount of gas present inside the can.

Question 7

Whether a substance exists as a gas, liquid, or solid depends on the balance between the kinetic energy of its particles and the strength of the interactions between the particles.

Accepted Answer

A) True 
 B)False

Question 8

A sample of neon gas has a volume of 5.0 mL at a pressure of 1.50 atm. What is the pressure exerted by the gas if the volume is increased to 30.0 mL, at constant temperature?

Accepted Answer

A) 0.25 atm 
B) 9.0 atm 
C) 1.5 atm 
D) 0.21 atm 
E) 7.5 atm 
A) 0.25 atm 
B) 9.0 atm 
C) 1.5 atm 
D) 0.21 atm 
E) 7.5 atm

Question 9

Graphite is an example of a _____ solid.

Accepted Answer

The answer of Graphite is an example of a _____...

Question 10

How many moles of gas are contained in a scuba diver's 12.6-L tank filled with 3422 psi of air at 25 °C?

Accepted Answer

A) 1760 moles 
B) 2.10 × 104 moles 
C) 120. moles 
D) 1430 moles 
A) 1760 moles 
B) 2.10 × 104 moles 
C) 120. moles 
D) 1430 moles

Question 11

Sarin, a nerve gas once used as a chemical weapon, has a melting point of -56 °C and a boiling point of 158 °C. A sample of sarin at room temperature (22 °C)exists as a liquid.

Accepted Answer

A) True 
 B)False

Question 12

A patient's systolic pressure is measured as 128 mm Hg. What is this pressure in units of atm?

Accepted Answer

A) 128 atm 
B) 1.28 atm 
C) 0.168 atm 
D) 9.73 x 104 atm 
E) 8.71 atm 
A) 128 atm 
B) 1.28 atm 
C) 0.168 atm 
D) 9.73 x 104 atm 
E) 8.71 atm

Question 13

Which is a network solid?

Accepted Answer

A) MgCl2 
B) Au 
C) SiO2 
D) Na 
E) sucrose (C12H22O11) 
A) MgCl2 
B) Au 
C) SiO2 
D) Na 
E) sucrose (C12H22O11)

Question 14

Viscosity is a measure of the resistance of a liquid to flow freely.

Accepted Answer

A) True 
 B)False

Question 15

Which cylinder at STP will contain the greatest mass of gas particles?

Accepted Answer

A) a 5.0-L cylinder of neon 
B) a 5.0-L cylinder of helium 
C) a 5.0-L cylinder of nitrogen 
D) a 5.0-L cylinder of hydrogen 
E) All of the cylinders above contain the same mass of gas particles. 
A) a 5.0-L cylinder of neon 
B) a 5.0-L cylinder of helium 
C) a 5.0-L cylinder of nitrogen 
D) a 5.0-L cylinder of hydrogen 
E) All of the cylinders above contain the same mass of gas particles.

Question 16

A gas cylinder containing 3.88 mol of helium has a pressure of 549 mm Hg at 298 K. If 1.22 mol of neon is added to this cylinder, at constant temperature and volume, the pressure will rise to 1750 mm Hg.

Accepted Answer

A) True 
 B)False

Question 17

When the volume of a sample of gas is doubled and the Kelvin temperature is doubled, the pressure of a sample remains constant.

Accepted Answer

A) True 
 B)False

Question 18

The normal boiling point of a liquid is the temperature at which its vapor pressure equals which of the following?

Accepted Answer

A) 1 mm Hg 
B) 760 mm Hg 
C) the pressure above the liquid 
D) the vapor pressure of water 
A) 1 mm Hg 
B) 760 mm Hg 
C) the pressure above the liquid 
D) the vapor pressure of water

Question 19

Which is a molecular solid?

Accepted Answer

A) MgCl2 
B) Au 
C) SiO2 
D) graphite 
E) sucrose (C12H22O11) 
A) MgCl2 
B) Au 
C) SiO2 
D) graphite 
E) sucrose (C12H22O11)

Question 20

The kinetic energy of gas particles _____ with increasing temperature.

Accepted Answer

The answer of The kinetic energy of gas particles _____...

Exam 7: Gases, Liquids, and Solids

A 22.4 g sample of O2 will occupy less than 22.4 L at STP.

_____ are due to momentary changes in electron density in a molecule.

When a sample of gas is heated from 80. °C to 160. °C at a constant pressure, the volume of the gas doubles.

When the volume of a sample of gas is doubled and the Kelvin temperature is cut in half, the pressure of a sample remains constant.

A scuba diver typically begins a dive with a compressed air tank at 2, 350 psi. What is this pressure expressed in units of mm Hg?

An aerosol spray can with a volume of 350 mL registers a pressure of 4.5 atm at room temperature. What happens to the pressure of the gas inside the can if the can is stored outside during the winter months?

Whether a substance exists as a gas, liquid, or solid depends on the balance between the kinetic energy of its particles and the strength of the interactions between the particles.

A sample of neon gas has a volume of 5.0 mL at a pressure of 1.50 atm. What is the pressure exerted by the gas if the volume is increased to 30.0 mL, at constant temperature?

Graphite is an example of a _____ solid.

How many moles of gas are contained in a scuba diver's 12.6-L tank filled with 3422 psi of air at 25 °C?

Sarin, a nerve gas once used as a chemical weapon, has a melting point of -56 °C and a boiling point of 158 °C. A sample of sarin at room temperature (22 °C)exists as a liquid.

A patient's systolic pressure is measured as 128 mm Hg. What is this pressure in units of atm?

Which is a network solid?

Viscosity is a measure of the resistance of a liquid to flow freely.

Which cylinder at STP will contain the greatest mass of gas particles?

A gas cylinder containing 3.88 mol of helium has a pressure of 549 mm Hg at 298 K. If 1.22 mol of neon is added to this cylinder, at constant temperature and volume, the pressure will rise to 1750 mm Hg.

When the volume of a sample of gas is doubled and the Kelvin temperature is doubled, the pressure of a sample remains constant.

The normal boiling point of a liquid is the temperature at which its vapor pressure equals which of the following?

Which is a molecular solid?

The kinetic energy of gas particles _____ with increasing temperature.

Matter and Measurement

Atoms and the Periodic Table

Ionic Compounds

Covalent Compounds

Chemical Reactions

Energy Changes, Reaction Rates, and Equilibrium

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Molecules and Functional Groups

Alkanes

Unsaturated Hydrocarbons

Organic Compounds That Contain Oxygen, Halogen, or Sulfur

The Three-Dimensional Shape of Molecules

Aldehydes and Ketones

Carboxylic Acids, Esters, and Amides

Amines and Neurotransmitters

Lipids

Carbohydrates

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Digestion and the Conversion of Food Into Energy

Carbohydrate, Lipid, and Protein Metabolism

Filters

A 22.4 g sample of O₂ will occupy less than 22.4 L at STP.