Question 1

A 0.133 mol sample of gas in a 525 mL container has a pressure of 312 torr. The temperature of the gas is ________ °C.

Accepted Answer

A) 20.3 
B) -253 
C) -20.3 
D) 203 
E) 22.4 
A) 20.3 
B) -253 
C) -20.3 
D) 203 
E) 22.4

Question 2

CO (5.00 g)and CO2 (5.00 g)were placed in a 750.0 mL container at 50.0 °C. The partial pressure of CO2 in the container was ________ atm.

Accepted Answer

A) 4.02 
B) 10.3 
C) 1.60 
D) 0.292 
E) 6.31 
A) 4.02 
B) 10.3 
C) 1.60 
D) 0.292 
E) 6.31

Question 3

If 50.75 g of a gas occupies 10.0 L at STP, 129.3 g of the gas will occupy ________ L at STP.

Accepted Answer

A) 3.92 
B) 50.8 
C) 12.9 
D) 25.5 
E) 5.08 
A) 3.92 
B) 50.8 
C) 12.9 
D) 25.5 
E) 5.08

Question 4

30.0 grams of argon and 15.0 grams of xenon are placed in a 170.9 ml container at 21.8 °C. The partial pressure of xenon is ________ atm.

Accepted Answer

A) 16.1 
B) 106 
C) 1.20 
D) 0.472 
E) 228 
A) 16.1 
B) 106 
C) 1.20 
D) 0.472 
E) 228

Question 5

The van der Waals equation corrects the ideal gas law for the finite volume and ________ of gas molecules.

Accepted Answer

The answer of The van der Waals equation corrects the...

Question 6

The pressure exerted by 1.0 mol of gas in a 13 L flask at 22 °C is ________ kPa.

Accepted Answer

A) 560 
B) 190 
C) 18 
D) 2.4 
E) 1.0 
A) 560 
B) 190 
C) 18 
D) 2.4 
E) 1.0

Question 7

Which one of the following gases would have the highest average molecular speed at 25 °C?

Accepted Answer

A) O2 
B) N2 
C) CO2 
D) CH4 
E) SF6 
A) O2 
B) N2 
C) CO2 
D) CH4 
E) SF6

Question 8

What volume (mL)of sulfur dioxide can be produced by the complete reaction of 3.82 g of calcium sulfite with excess HCl (aq), when the final SO2 pressure is 827 torr at 44.0 °C?

Accepted Answer

A) 7.60 × 102 
B) 1.39 × 10-4 
C) 1.00 × 10-3 
D) 0.106 
E) 5.78 × 102 
A) 7.60 × 102 
B) 1.39 × 10-4 
C) 1.00 × 10-3 
D) 0.106 
E) 5.78 × 102

Question 9

Of the following gases, ________ has density of 0.906 g/L at 315 K and 1.16 atm.

Accepted Answer

A) Ne 
B) Ar 
C) Kr 
D) Xe 
E) He 
A) Ne 
B) Ar 
C) Kr 
D) Xe 
E) He

Question 10

The amount of gas that occupies 36.52 L at 68.0 °C and 672 mm Hg is ________ mol.

Accepted Answer

A) 127 
B) 1.15 
C) 878 
D) 24.4 
E) 12.7 
A) 127 
B) 1.15 
C) 878 
D) 24.4 
E) 12.7

Question 11

The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at 1.62 atm and 62.0 °C is ________ L.

Accepted Answer

The answer of The volume of HCl gas required to...

Question 12

The temperature of a sample of CH4 gas (10.34 g)in a 50.0 L vessel at 1.33 atm is ________ °C.

Accepted Answer

A) 984 
B) -195 
C) 195 
D) 1260 
E) -1260 
A) 984 
B) -195 
C) 195 
D) 1260 
E) -1260

Question 13

Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a gas at room temperature?

Accepted Answer

A) KBr 
B) F2 
C) HCN 
D) SO2 
E) CH4 
A) KBr 
B) F2 
C) HCN 
D) SO2 
E) CH4

Question 14

The amount of gas that occupies 60.82 L at 31.0 °C and 367 mm Hg is ________ mol.

Accepted Answer

A) 1.18 
B) 0.850 
C) 894 
D) 11.6 
E) 0.120 
A) 1.18 
B) 0.850 
C) 894 
D) 11.6 
E) 0.120

Question 15

The molar volume of a gas at STP is ________ L.

Accepted Answer

A) 0.08206 
B) 62.36 
C) 1.00 
D) 22.4 
E) 14.7 
A) 0.08206 
B) 62.36 
C) 1.00 
D) 22.4 
E) 14.7

Question 16

Zinc reacts with aqueous sulfuric acid to form hydrogen gas: Zn (s) + H2SO4 (aq) → ZnSO4 (aq) + H2 (g)
In an experiment, 177 mL of wet H2 is collected over water at 27 °C and a barometric pressure of 766 torr. The vapor pressure of water at 27 °C is 26.74 torr. The partial pressure of hydrogen in this experiment is ________ atm.

Accepted Answer

A) 0.972 
B) 739 
C) 1.01 
D) 793 
E) 1.04 
A) 0.972 
B) 739 
C) 1.01 
D) 793 
E) 1.04

Question 17

A gas at a pressure of 325 torr exerts a force of ________ N on an area of 5.5 m2.

Accepted Answer

A) 1.8 × 103 
B) 59 
C) 2.4 × 105 
D) 0.018 
E) 2.4 
A) 1.8 × 103 
B) 59 
C) 2.4 × 105 
D) 0.018 
E) 2.4

Question 18

The first person to investigate the relationship between the pressure of a gas and its volume was ________.

Accepted Answer

A) Amadeo Avogadro 
B) Lord Kelvin 
C) Jacques Charles 
D) Robert Boyle 
E) Joseph Louis Gay-Lussac 
A) Amadeo Avogadro 
B) Lord Kelvin 
C) Jacques Charles 
D) Robert Boyle 
E) Joseph Louis Gay-Lussac

Question 19

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN3 (s) → 2Na (s) + 3N2 (g).
What mass (g)of NaN3 is required to provide 40.0 L of N2 at 25.0 °C and 763 torr?

Accepted Answer

A) 1.64 
B) 1.09 
C) 160 
D) 71.1 
E) 107 
A) 1.64 
B) 1.09 
C) 160 
D) 71.1 
E) 107

Question 20

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN3 (s) → 2Na (s) + 3N2 (g).
What mass (g)of NaN3 is required to provide 26.5 L of N2 at 22.0 °C and 1.10 atm?

Accepted Answer

A) 52.2 
B) 700. 
C) 0.807 
D) 1.21 
E) 1.10 
A) 52.2 
B) 700. 
C) 0.807 
D) 1.21 
E) 1.10

Exam 10: Gases

A 0.133 mol sample of gas in a 525 mL container has a pressure of 312 torr. The temperature of the gas is ________ °C.

CO (5.00 g)and CO2 (5.00 g)were placed in a 750.0 mL container at 50.0 °C. The partial pressure of CO2 in the container was ________ atm.

If 50.75 g of a gas occupies 10.0 L at STP, 129.3 g of the gas will occupy ________ L at STP.

30.0 grams of argon and 15.0 grams of xenon are placed in a 170.9 ml container at 21.8 °C. The partial pressure of xenon is ________ atm.

The van der Waals equation corrects the ideal gas law for the finite volume and ________ of gas molecules.

The pressure exerted by 1.0 mol of gas in a 13 L flask at 22 °C is ________ kPa.

Which one of the following gases would have the highest average molecular speed at 25 °C?

What volume (mL)of sulfur dioxide can be produced by the complete reaction of 3.82 g of calcium sulfite with excess HCl (aq), when the final SO2 pressure is 827 torr at 44.0 °C?

Of the following gases, ________ has density of 0.906 g/L at 315 K and 1.16 atm.

The amount of gas that occupies 36.52 L at 68.0 °C and 672 mm Hg is ________ mol.

The volume of HCl gas required to react with excess Ca to produce 11.4 L of hydrogen gas at 1.62 atm and 62.0 °C is ________ L.

The temperature of a sample of CH4 gas (10.34 g)in a 50.0 L vessel at 1.33 atm is ________ °C.

Molecular compounds of low molecular weight tend to be gases at room temperature. Which of the following is most likely not a gas at room temperature?

The amount of gas that occupies 60.82 L at 31.0 °C and 367 mm Hg is ________ mol.

The molar volume of a gas at STP is ________ L.

A gas at a pressure of 325 torr exerts a force of ________ N on an area of 5.5 m2.

The first person to investigate the relationship between the pressure of a gas and its volume was ________.

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN3 (s) → 2Na (s) + 3N2 (g). What mass (g)of NaN3 is required to provide 40.0 L of N2 at 25.0 °C and 763 torr?

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN3 (s) → 2Na (s) + 3N2 (g). What mass (g)of NaN3 is required to provide 26.5 L of N2 at 22.0 °C and 1.10 atm?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

CO (5.00 g)and CO₂ (5.00 g)were placed in a 750.0 mL container at 50.0 °C. The partial pressure of CO₂ in the container was ________ atm.

What volume (mL)of sulfur dioxide can be produced by the complete reaction of 3.82 g of calcium sulfite with excess HCl (aq), when the final SO₂ pressure is 827 torr at 44.0 °C?

The temperature of a sample of CH₄ gas (10.34 g)in a 50.0 L vessel at 1.33 atm is ________ °C.

A gas at a pressure of 325 torr exerts a force of ________ N on an area of 5.5 m².

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN₃ (s) → 2Na (s) + 3N₂ (g). What mass (g)of NaN₃ is required to provide 40.0 L of N₂ at 25.0 °C and 763 torr?

Automobile air bags use the decomposition of sodium azide as their source of gas for rapid inflation: 2NaN₃ (s) → 2Na (s) + 3N₂ (g). What mass (g)of NaN₃ is required to provide 26.5 L of N₂ at 22.0 °C and 1.10 atm?