Question 1

Under which set of conditions will a real gas be most likely to act as an ideal gas?

Accepted Answer

A) High temperature and high pressure 
B) High temperature and low pressure 
C) Low temperature and high pressure 
D) Low temperature and low pressure 
A) High temperature and high pressure 
B) High temperature and low pressure 
C) Low temperature and high pressure 
D) Low temperature and low pressure

Question 2

At which pressure would a 2.60 mole sample of gas at 20.0 ° C have a volume of 25.0 L?

Accepted Answer

A) 0.171 atm 
B) 15.8 atm 
C) 2.08 atm 
D) 2.50 atm 
A) 0.171 atm 
B) 15.8 atm 
C) 2.08 atm 
D) 2.50 atm

Question 3

A 400.mL sample of hydrogen is collected over water at 23.0 ° C and 758.4 torr.What isthe volume of the dry hydrogen gas at 23.0 ° C and 758.4 torr? The vapor pressure of water at 23.0 ° C is 21.1 torr.

Accepted Answer

A) 144 mL 
B) 389 mL 
C) 411 mL 
D) 14400 mL 
A) 144 mL 
B) 389 mL 
C) 411 mL 
D) 14400 mL

Question 4

A 120.mL sample of a gas is at a pressure of 1.50 atm.If the temperature remains constant, what will be its volume at 3.50 atm of pressure?

Accepted Answer

A) 280.mL 
B) 22.9 mL 
C) 120.mL 
D) 51.4 mL 
A) 280.mL 
B) 22.9 mL 
C) 120.mL 
D) 51.4 mL

Question 5

A 4.00 L sample of a gas is at a pressure of 2.00 atm.If the temperature remains constant, what will be its volume at 0.500 atm of pressure?

Accepted Answer

A) 1.00 L 
B) 16.0 L 
C) 0.250 L 
D) 4.00 L 
A) 1.00 L 
B) 16.0 L 
C) 0.250 L 
D) 4.00 L

Question 6

A mixture of 10.0 g of Ne and 10.0 g of Ar was kept in a 1.00 L container at 765 torr.Calculate the partial pressure of Ar inside the container.

Accepted Answer

A) 508 torr 
B) 257 torr 
C) 614 torr 
D) 125 torr 
A) 508 torr 
B) 257 torr 
C) 614 torr 
D) 125 torr

Question 7

A sample of an ideal gas is kept in a rigid container while the Kelvin temperature is doubled.What will happen to the pressure of the gas?

Accepted Answer

A) The pressure will double. 
B) The pressure will be halved. 
C) The pressure will remain constant. 
D) The pressure will increase by a factor of 1.5. 
A) The pressure will double. 
B) The pressure will be halved. 
C) The pressure will remain constant. 
D) The pressure will increase by a factor of 1.5.

Question 8

As the number of molecules in a gas sample increases,temperature and volume remaining constant,the pressure exerted by the gas

Accepted Answer

A) increases. 
B) decreases. 
C) remains the same. 
A) increases. 
B) decreases. 
C) remains the same.

Question 9

How many grams of oxygen are consumed when 18.0 L of CH4 gas react completely in the following equation? CH4(g)+ 2 O2(g)$\rarr$CO2(g)+ 2 H2O(g)

Accepted Answer

A) 51.4 grams 
B) 79.7 grams 
C) 576 grams 
D) 1.15   103 grams 
A) 51.4 grams 
B) 79.7 grams 
C) 576 grams 
D) 1.15   103 grams

Question 10

What is the molar mass of a gas if 10.00 g of the gas occupies 13.60 L at 20.00 ° C and
1.050 atm?

Accepted Answer

Question 11

Calculate the density of argon gas at STP.

Accepted Answer

A) 2.24 g/L 
B) 1.36 g/L 
C) 1.78 g/L 
D) 1.63 g/L 
A) 2.24 g/L 
B) 1.36 g/L 
C) 1.78 g/L 
D) 1.63 g/L

Question 12

What is the molar mass of a gas if 40.0 L of the gas has a mass of 36.0 g at 740.torr and 30.0 ° C?

Accepted Answer

A) 333 g 
B) 33.1 g 
C) 23.0 g 
D) 56.0 g 
A) 333 g 
B) 33.1 g 
C) 23.0 g 
D) 56.0 g

Question 13

A hot air balloon is filled to a volume of 44.5 L at 758 torr.What will be the volume of the balloon if the pressure decreases to 748 torr under constant temperature?

Accepted Answer

A) 45.1 L 
B) 43.9 L 
C) 44.5 L 
D) 49.0 L 
A) 45.1 L 
B) 43.9 L 
C) 44.5 L 
D) 49.0 L

Question 14

A sample of gas has a volume of 400.mL at STP.What will be its volume at 20.0 ° C and700.torr?

Accepted Answer

A) 466 mL 
B) 343 mL 
C) 60.1 mL 
D) 2660 mL 
A) 466 mL 
B) 343 mL 
C) 60.1 mL 
D) 2660 mL

Question 15

At what temperature would 0.600 mole of a gas at 700.torr have a volume of 22.6 L?

Accepted Answer

A) 150. ° C 
B) 225 ° C 
C) 423 ° C 
D) 498 ° C 
A) 150. ° C 
B) 225 ° C 
C) 423 ° C 
D) 498 ° C

Question 16

What is the volume of 1.40 moles of chlorine gas at STP?

Accepted Answer

A) 31.4 L 
B) 16.0 L 
C) 0.316 L 
D) 3.17 L 
A) 31.4 L 
B) 16.0 L 
C) 0.316 L 
D) 3.17 L

Question 17

The ideal gas law is obeyed by gases under the assumption that the size of their particles is negligible compared to the distance between them.

Accepted Answer

A) True 
 B)False

Question 18

Sulfur trioxide gas is produced from sulfur dioxide gas and oxygen gas. 
A.Write a balanced chemical equation for this reaction.
B.What mass of sulfur trioxide will be produced from the complete reaction of 15.0 L of oxygen in this reaction?
C.What volume of sulfur trioxide will be produced from the complete reaction of 15.0 L of oxygen in this reaction?

Accepted Answer

A.2 SO₂ +

Question 19

A real gas most closely resembles an ideal gas at high temperature and low pressure.

Accepted Answer

A) True 
 B)False

Question 20

As the pressure of a sample of gas is increased at constant temperature,the volume of the gaswill

Accepted Answer

A) increases. 
B) decreases. 
C) remain the same. 
A) increases. 
B) decreases. 
C) remain the same.

Under which set of conditions will a real gas be most likely to act as an ideal gas?

At which pressure would a 2.60 mole sample of gas at 20.0^°C have a volume of 25.0 L?

A 400.mL sample of hydrogen is collected over water at 23.0^°C and 758.4 torr.What isthe volume of the dry hydrogen gas at 23.0^°C and 758.4 torr? The vapor pressure of water at 23.0^°C is 21.1 torr.

A 120.mL sample of a gas is at a pressure of 1.50 atm.If the temperature remains constant, what will be its volume at 3.50 atm of pressure?

A 4.00 L sample of a gas is at a pressure of 2.00 atm.If the temperature remains constant, what will be its volume at 0.500 atm of pressure?

A mixture of 10.0 g of Ne and 10.0 g of Ar was kept in a 1.00 L container at 765 torr.Calculate the partial pressure of Ar inside the container.

A sample of an ideal gas is kept in a rigid container while the Kelvin temperature is doubled.What will happen to the pressure of the gas?

As the number of molecules in a gas sample increases,temperature and volume remaining constant,the pressure exerted by the gas

How many grams of oxygen are consumed when 18.0 L of CH₄ gas react completely in the following equation? CH₄(g)+ 2 O₂(g) $\rarr$ CO₂(g)+ 2 H₂O(g)

What is the molar mass of a gas if 10.00 g of the gas occupies 13.60 L at 20.00^°C and 1.050 atm?

Calculate the density of argon gas at STP.

What is the molar mass of a gas if 40.0 L of the gas has a mass of 36.0 g at 740.torr and 30.0^°C?

A hot air balloon is filled to a volume of 44.5 L at 758 torr.What will be the volume of the balloon if the pressure decreases to 748 torr under constant temperature?

A sample of gas has a volume of 400.mL at STP.What will be its volume at 20.0^°C and700.torr?

At what temperature would 0.600 mole of a gas at 700.torr have a volume of 22.6 L?

What is the volume of 1.40 moles of chlorine gas at STP?

The ideal gas law is obeyed by gases under the assumption that the size of their particles is negligible compared to the distance between them.

A real gas most closely resembles an ideal gas at high temperature and low pressure.

As the pressure of a sample of gas is increased at constant temperature,the volume of the gaswill

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Exam 12: The Gaseous State of Matter

Under which set of conditions will a real gas be most likely to act as an ideal gas?

At which pressure would a 2.60 mole sample of gas at 20.0 ° C have a volume of 25.0 L?

A 400.mL sample of hydrogen is collected over water at 23.0 ° C and 758.4 torr.What isthe volume of the dry hydrogen gas at 23.0 ° C and 758.4 torr? The vapor pressure of water at 23.0 ° C is 21.1 torr.

A 120.mL sample of a gas is at a pressure of 1.50 atm.If the temperature remains constant, what will be its volume at 3.50 atm of pressure?

A 4.00 L sample of a gas is at a pressure of 2.00 atm.If the temperature remains constant, what will be its volume at 0.500 atm of pressure?

A mixture of 10.0 g of Ne and 10.0 g of Ar was kept in a 1.00 L container at 765 torr.Calculate the partial pressure of Ar inside the container.

A sample of an ideal gas is kept in a rigid container while the Kelvin temperature is doubled.What will happen to the pressure of the gas?

As the number of molecules in a gas sample increases,temperature and volume remaining constant,the pressure exerted by the gas

How many grams of oxygen are consumed when 18.0 L of CH4 gas react completely in the following equation? CH4(g)+ 2 O2(g) →\rarr→ CO2(g)+ 2 H2O(g)

What is the molar mass of a gas if 10.00 g of the gas occupies 13.60 L at 20.00 ° C and 1.050 atm?

Calculate the density of argon gas at STP.

What is the molar mass of a gas if 40.0 L of the gas has a mass of 36.0 g at 740.torr and 30.0 ° C?

A hot air balloon is filled to a volume of 44.5 L at 758 torr.What will be the volume of the balloon if the pressure decreases to 748 torr under constant temperature?

A sample of gas has a volume of 400.mL at STP.What will be its volume at 20.0 ° C and700.torr?

At what temperature would 0.600 mole of a gas at 700.torr have a volume of 22.6 L?

What is the volume of 1.40 moles of chlorine gas at STP?

The ideal gas law is obeyed by gases under the assumption that the size of their particles is negligible compared to the distance between them.

A real gas most closely resembles an ideal gas at high temperature and low pressure.

As the pressure of a sample of gas is increased at constant temperature,the volume of the gaswill

An Introduction to Chemistry

Standards for Measurement

Elements and Compounds

Properties of Matter

Early Atomic Theory and Structure

Nomenclature of Inorganic Compounds

Quantitative Composition of Compounds

Chemical Equations

Calculations From Chemical Equations

Modern Atomic Theory and the Periodic Table

Chemical Bonds: the Formation of Compounds From Atoms

Liquids

Solutions

Acids, Bases, and Salts

Chemical Equilibrium

Oxidationreduction

Nuclear Chemistry

Introduction to Organic Chemistry Online Only

Introduction to Biochemistry Online Only

Filters

At which pressure would a 2.60 mole sample of gas at 20.0^°C have a volume of 25.0 L?

A 400.mL sample of hydrogen is collected over water at 23.0^°C and 758.4 torr.What isthe volume of the dry hydrogen gas at 23.0^°C and 758.4 torr? The vapor pressure of water at 23.0^°C is 21.1 torr.

How many grams of oxygen are consumed when 18.0 L of CH₄ gas react completely in the following equation? CH₄(g)+ 2 O₂(g) $\rarr$ CO₂(g)+ 2 H₂O(g)

What is the molar mass of a gas if 10.00 g of the gas occupies 13.60 L at 20.00^°C and 1.050 atm?

What is the molar mass of a gas if 40.0 L of the gas has a mass of 36.0 g at 740.torr and 30.0^°C?

A sample of gas has a volume of 400.mL at STP.What will be its volume at 20.0^°C and700.torr?