Question 1

What temperature scale is used in gas law calculations?

Accepted Answer

A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) either Celsius or Fahrenheit 
E) either Celsius or Kelvin 
A) Fahrenheit 
B) Celsius 
C) Kelvin 
D) either Celsius or Fahrenheit 
E) either Celsius or Kelvin C

Question 2

STP is ________ mmHg and ________K.

Accepted Answer

760; 273

Question 3

The air we breathe is about 21% oxygen.

Accepted Answer

A) True 
 B)False  True

Question 4

At 0 K,all molecular motion stops.

Accepted Answer

A) True 
 B)False

Question 5

At STP,what is the volume of 1.0 mole of carbon dioxide?

Accepted Answer

A) 1.00 L 
B) 44.0 L 
C) 273 L 
D) 22.4 L 
E) 12.2 L 
A) 1.00 L 
B) 44.0 L 
C) 273 L 
D) 22.4 L 
E) 12.2 L

Question 6

The total pressure in a mixture of gases is equal to the partial pressure(s)of ________.

Accepted Answer

A) the gas with the greatest number of moles 
B) the gas with the smallest number of moles 
C) the gas with the highest molecular weight 
D) the gas that occupies the largest volume 
E) all the gases added together 
A) the gas with the greatest number of moles 
B) the gas with the smallest number of moles 
C) the gas with the highest molecular weight 
D) the gas that occupies the largest volume 
E) all the gases added together

Question 7

A cyclopropane-oxygen mixture is used as an anesthetic.If the partial pressure of cyclopropane in the mixture is 330 mmHg and the partial pressure of the oxygen is 1.0 atm,what is the total pressure of the mixture in torr?

Accepted Answer

A) 330 torr 
B) 430 torr 
C) 760 torr 
D) 1.4 torr 
E) 1100 torr 
A) 330 torr 
B) 430 torr 
C) 760 torr 
D) 1.4 torr 
E) 1100 torr

Question 8

A gas contained in a steel tank has a pressure of 1.5 atm at a temperature of 320 K.What will be the gas pressure when the temperature changes to 450 K?

Accepted Answer

A) 1.5 atm 
B) 0.94 atm 
C) 0.47 atm 
D) 2.1 atm 
E) 1.1 atm 
A) 1.5 atm 
B) 0.94 atm 
C) 0.47 atm 
D) 2.1 atm 
E) 1.1 atm

Question 9

A 5.00-L tank contains helium gas at 1.50 atm.What is the pressure of the gas in mmHg?

Accepted Answer

A) 1.50 mmHg 
B) 507 mmHg 
C) 760 mmHg 
D) 1140 mmHg 
E) 3800 mmHg 
A) 1.50 mmHg 
B) 507 mmHg 
C) 760 mmHg 
D) 1140 mmHg 
E) 3800 mmHg

Question 10

Which of the following correctly describes the partial pressures of gases in the body?

Accepted Answer

A) high   ,low   ,oxygenated blood 
B) high   ,low   ,deoxygenated blood 
C) high   ,high   ,oxygenated blood 
D) high   ,high   ,tissue 
E) low   ,low   ,deoxygenated blood 
A) high   ,low   ,oxygenated blood 
B) high   ,low   ,deoxygenated blood 
C) high   ,high   ,oxygenated blood 
D) high   ,high   ,tissue 
E) low   ,low   ,deoxygenated blood

Question 11

A gas sample containing 12 g of   has a volume of 14 L.What will the volume be if 12 g of He is added? (Temperature and pressure do not change.)

Accepted Answer

A) 22.4.L 
B) 53 L 
C) 56 L 
D) 70 L 
E) 3.5 L 
A) 22.4.L 
B) 53 L 
C) 56 L 
D) 70 L 
E) 3.5 L

Question 12

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

Accepted Answer

A) True 
 B)False

Question 13

A gas has a volume of 45.0 L and a pressure of 540.mmHg when the temperature is 27 °C.What is the volume when the pressure changes to 800.mmHg with a temperature of -65 °C,if there is no change in the amount of gas?

Accepted Answer

The answer of A gas has a volume of 45.0...

Question 14

A gas has a volume of 12.0 L when the pressure is 840.torr.When the pressure changes to 600.torr,what is the new volume,if there is no change in temperature or amount of gas?

Accepted Answer

The answer of A gas has a volume of 12.0...

Question 15

Nitrogen makes up about ________ percent of the atmosphere.

Accepted Answer

The answer of Nitrogen makes up about ________ percent of...

Question 16

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

Accepted Answer

The answer of A gas has a pressure of 540.torr...

Question 17

One atmosphere is the same pressure as ________ mmHg.

Accepted Answer

The answer of One atmosphere is the same pressure as...

Question 18

During inspiration,we use 100% of the oxygen in the air we breathe.

Accepted Answer

A) True 
 B)False

Question 19

The force of gas particles against the walls of a container is called ________.

Accepted Answer

A) pressure 
B) volume 
C) temperature 
D) quantity of gas 
E) density 
A) pressure 
B) volume 
C) temperature 
D) quantity of gas 
E) density

Question 20

The speed of gas molecules is related to the volume of the container.

Accepted Answer

A) True 
 B)False

What temperature scale is used in gas law calculations?

STP is mmHg and K.

The air we breathe is about 21% oxygen.

At 0 K,all molecular motion stops.

At STP,what is the volume of 1.0 mole of carbon dioxide?

The total pressure in a mixture of gases is equal to the partial pressure(s)of ________.

A cyclopropane-oxygen mixture is used as an anesthetic.If the partial pressure of cyclopropane in the mixture is 330 mmHg and the partial pressure of the oxygen is 1.0 atm,what is the total pressure of the mixture in torr?

A gas contained in a steel tank has a pressure of 1.5 atm at a temperature of 320 K.What will be the gas pressure when the temperature changes to 450 K?

A 5.00-L tank contains helium gas at 1.50 atm.What is the pressure of the gas in mmHg?

Which of the following correctly describes the partial pressures of gases in the body?

A gas sample containing 12 g of has a volume of 14 L.What will the volume be if 12 g of He is added? (Temperature and pressure do not change.)

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

A gas has a volume of 45.0 L and a pressure of 540.mmHg when the temperature is 27 °C.What is the volume when the pressure changes to 800.mmHg with a temperature of -65 °C,if there is no change in the amount of gas?

A gas has a volume of 12.0 L when the pressure is 840.torr.When the pressure changes to 600.torr,what is the new volume,if there is no change in temperature or amount of gas?

Nitrogen makes up about ________ percent of the atmosphere.

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

One atmosphere is the same pressure as ________ mmHg.

During inspiration,we use 100% of the oxygen in the air we breathe.

The force of gas particles against the walls of a container is called ________.

The speed of gas molecules is related to the volume of the container.

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Exam 8: Gases

What temperature scale is used in gas law calculations?

STP is ________ mmHg and ________K.

The air we breathe is about 21% oxygen.

At 0 K,all molecular motion stops.

At STP,what is the volume of 1.0 mole of carbon dioxide?

The total pressure in a mixture of gases is equal to the partial pressure(s)of ________.

A cyclopropane-oxygen mixture is used as an anesthetic.If the partial pressure of cyclopropane in the mixture is 330 mmHg and the partial pressure of the oxygen is 1.0 atm,what is the total pressure of the mixture in torr?

A gas contained in a steel tank has a pressure of 1.5 atm at a temperature of 320 K.What will be the gas pressure when the temperature changes to 450 K?

A 5.00-L tank contains helium gas at 1.50 atm.What is the pressure of the gas in mmHg?

Which of the following correctly describes the partial pressures of gases in the body?

A gas sample containing 12 g of has a volume of 14 L.What will the volume be if 12 g of He is added? (Temperature and pressure do not change.)

The pressure exerted by a gas on its container is inversely related to its Kelvin temperature.

A gas has a volume of 45.0 L and a pressure of 540.mmHg when the temperature is 27 °C.What is the volume when the pressure changes to 800.mmHg with a temperature of -65 °C,if there is no change in the amount of gas?

A gas has a volume of 12.0 L when the pressure is 840.torr.When the pressure changes to 600.torr,what is the new volume,if there is no change in temperature or amount of gas?

Nitrogen makes up about ________ percent of the atmosphere.

A gas has a pressure of 540.torr when the temperature is 127 °C.When the temperature changes to 27 °C,what is the new pressure,if there is no change in volume or amount of gas?

One atmosphere is the same pressure as ________ mmHg.

During inspiration,we use 100% of the oxygen in the air we breathe.

The force of gas particles against the walls of a container is called ________.

The speed of gas molecules is related to the volume of the container.

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, Thiols, Ethers, Aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, Esters, Amines, and Amides

Lipids

Amino Acids, Proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

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STP is mmHg and K.