Question 1

How many moles are contained in 5.33 L of O2 at standard temperature and pressure?

Accepted Answer

A) 5.33 mol of O2 
B) 1.00 mol of O2 
C) 0.238 mol of O2 
D) 22.4 mol of O2 
E) 4.20 mol of O2 
A) 5.33 mol of O2 
B) 1.00 mol of O2 
C) 0.238 mol of O2 
D) 22.4 mol of O2 
E) 4.20 mol of O2

Question 2

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 3

Which molecule(s)exhibit London dispersion forces?

Accepted Answer

A) Kl 
B) CH4 
C) NH3 
D) HBr 
E) All of the molecules exhibit London dispersion forces. 
A) Kl 
B) CH4 
C) NH3 
D) HBr 
E) All of the molecules exhibit London dispersion forces.

Question 4

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 5

London dispersion forces are exhibited by all covalent compounds.

Accepted Answer

A) True 
 B)False

Question 6

At rest,the volume of air in the lungs is 615 mL at 760 mm Hg. When the volume of the lungs expands during inhalation,what happens to the pressure inside the lungs?

Accepted Answer

A) The pressure inside the lungs decreases,which draws air into the lungs. 
B) The pressure inside the lungs increases,which forces air inside the lungs. 
C) The pressure inside the lungs remains constant,and air readily flows into the lungs. 
D) The pressure inside the lungs cannot be determined if the weight of the person is unknown. 
A) The pressure inside the lungs decreases,which draws air into the lungs. 
B) The pressure inside the lungs increases,which forces air inside the lungs. 
C) The pressure inside the lungs remains constant,and air readily flows into the lungs. 
D) The pressure inside the lungs cannot be determined if the weight of the person is unknown.

Question 7

If the lungs of a child hold 0.11 mol of air in a volume of 2.8 L,then the lungs of an average female adult,with a volume is 4.6 L,can be expected to hold 0.18 mol of air.

Accepted Answer

A) True 
 B)False

Question 8

A gas cylinder containing 6.38 mol of neon has a pressure of 491 mm Hg at 295 K. If 3.22 mol of helium is added to this cylinder,at constant temperature and volume,what will be the pressure in the cylinder?

Accepted Answer

A) 9.73 mm Hg 
B) 739 mm Hg 
C) 1460 mm Hg 
D) 248 mm Hg 
A) 9.73 mm Hg 
B) 739 mm Hg 
C) 1460 mm Hg 
D) 248 mm Hg

Question 9

Freeze-drying removes water from foods by the process of sublimation.

Accepted Answer

A) True 
 B)False

Question 10

_____ is the pressure exerted by gas molecules in equilibrium with the liquid phase.

Accepted Answer

The answer of _____ is the pressure exerted by gas...

Question 11

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 12

The density of a sample of gas increases if the temperature is increased but the pressure is held constant.

Accepted Answer

A) True 
 B)False

Question 13

The value of the universal gas constant,R,changes as a function of temperature.

Accepted Answer

A) True 
 B)False

Question 14

One would need to add ________ calories of heat to increase the temperature of 100.0 g of ethanol from 20ºC to 27ºC? The specific heat of ethanol is 0.583 cal/(g•ºC).

Accepted Answer

The answer of One would need to add ________ calories...

Question 15

The type(s)of intermolecular forces exhibited by hydrogen bromide molecules,HBr,is/are ________.

Accepted Answer

London dispersion forces or Lo

Question 16

The energy required to break up the attractions between ethylene glycol molecules is greater than the energy required to break up the attractions between propane molecules.

Accepted Answer

A) True 
 B)False

Question 17

An aerosol can has a pressure of 1.86 atm. What is this pressure expressed in units of mm Hg?

Accepted Answer

A) 1.86 mm Hg 
B) 1410 mm Hg 
C) 1860 mm Hg 
D) 0.00245 mm Hg 
A) 1.86 mm Hg 
B) 1410 mm Hg 
C) 1860 mm Hg 
D) 0.00245 mm Hg

Question 18

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 19

Polypropylene,a typical plastic,is an example of an amorphous solid.

Accepted Answer

A) True 
 B)False

Question 20

Consider the two liquids A and B shown in closed containers. Which liquid has the higher vapor pressure?

Accepted Answer

A) Liquid A 
B) Liquid B 
C) Both Liquids A and B have equal vapor pressures. 
D) Not enough information is given. 
A) Liquid A 
B) Liquid B 
C) Both Liquids A and B have equal vapor pressures. 
D) Not enough information is given.

Exam 7: Gases,liquids,and Solids

How many moles are contained in 5.33 L of O2 at standard temperature and pressure?

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

Which molecule(s)exhibit London dispersion forces?

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.

London dispersion forces are exhibited by all covalent compounds.

At rest,the volume of air in the lungs is 615 mL at 760 mm Hg. When the volume of the lungs expands during inhalation,what happens to the pressure inside the lungs?

If the lungs of a child hold 0.11 mol of air in a volume of 2.8 L,then the lungs of an average female adult,with a volume is 4.6 L,can be expected to hold 0.18 mol of air.

A gas cylinder containing 6.38 mol of neon has a pressure of 491 mm Hg at 295 K. If 3.22 mol of helium is added to this cylinder,at constant temperature and volume,what will be the pressure in the cylinder?

Freeze-drying removes water from foods by the process of sublimation.

_____ is the pressure exerted by gas molecules in equilibrium with the liquid phase.

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.

The density of a sample of gas increases if the temperature is increased but the pressure is held constant.

The value of the universal gas constant,R,changes as a function of temperature.

One would need to add ________ calories of heat to increase the temperature of 100.0 g of ethanol from 20ºC to 27ºC? The specific heat of ethanol is 0.583 cal/(g•ºC).

The type(s)of intermolecular forces exhibited by hydrogen bromide molecules,HBr,is/are ________.

The energy required to break up the attractions between ethylene glycol molecules is greater than the energy required to break up the attractions between propane molecules.

An aerosol can has a pressure of 1.86 atm. What is this pressure expressed in units of mm Hg?

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?

Polypropylene,a typical plastic,is an example of an amorphous solid.

Consider the two liquids A and B shown in closed containers. Which liquid has the higher vapor pressure?

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

Metabolism and Energy Production

Carbohydrate,lipid,and Protein Metabolism

Filters

How many moles are contained in 5.33 L of O₂ at standard temperature and pressure?