Question 1

As the temperature of a gas increases, its pressure increases as long as the volume is kept constant.

Accepted Answer

A) True 
 B)False

Question 2

Which of the following gases occupy the largest volume at STP?

Accepted Answer

A)  12.00 g He 
B)  2 mol of water 
C)  38.00 g F₂ 
D)  6.022 × 1023 molecules of ammonia 
A)  12.00 g He 
B)  2 mol of water 
C)  38.00 g F₂ 
D)  6.022 × 1023 molecules of ammonia

Question 3

Match the event to the corresponding consequence.
-At constant volume, as temperature decreases, ________.

Accepted Answer

A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases 
A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases

Question 4

At sea level, if a low pressure system comes through then the atmospheric pressure is below 760 mm Hg.

Accepted Answer

A) True 
 B)False

Question 5

The molar volume of an ideal gas is ________.

Accepted Answer

A)  always equal to 22.4 L at room temperature 
B)  proportional to the molecular weight of the gas 
C)  always equal to 22.4 L at STP 
D)  inversely proportional to the molecular weight of the gas 
A)  always equal to 22.4 L at room temperature 
B)  proportional to the molecular weight of the gas 
C)  always equal to 22.4 L at STP 
D)  inversely proportional to the molecular weight of the gas

Question 6

Match the number of moles with each of the following quantities of substances, measured at STP.
-0.500 mole

Accepted Answer

A) 12.1 L of neon gas 
B) 32.0 g of oxygen gas 
C) 44.8 L of ammonia gas 
D) 3.00 liters of acetylene 
E) 16.0 g of oxygen gas 
A) 12.1 L of neon gas 
B) 32.0 g of oxygen gas 
C) 44.8 L of ammonia gas 
D) 3.00 liters of acetylene 
E) 16.0 g of oxygen gas

Question 7

Match each set of two variables of an ideal gas  with its corresponding relationship (proportional or inversely proportional).
-pressure and volume

Accepted Answer

A) proportional 
B) inversely proportional 
A) proportional 
B) inversely proportional

Question 8

The density of hydrogen gas at STP is ________.

Accepted Answer

A)  0.045 g/L 
B)  0.090 g/L 
C)  0.180 g/L 
D)  0.360 g/mL 
A)  0.045 g/L 
B)  0.090 g/L 
C)  0.180 g/L 
D)  0.360 g/mL

Question 9

Match the event to the corresponding consequence.
-At constant pressure, as temperature increases, ________.

Accepted Answer

A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases 
A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases

Question 10

Find the number of liters occupied by 3.0 g of nitrogen gas at STP.

Accepted Answer

A)  67 L 
B)  7.5 L 
C)  2.4 L 
D)  0.13 L 
A)  67 L 
B)  7.5 L 
C)  2.4 L 
D)  0.13 L

Question 11

A gas occupies 2.00 L at 298 K and 2.10 atm. The volume of this gas at STP is ________.

Accepted Answer

A)  22.4 L 
B)  2.24 L 
C)  3.84 L 
D)  2.00 L 
A)  22.4 L 
B)  2.24 L 
C)  3.84 L 
D)  2.00 L

Question 12

An unknown gaseous substance has a density of 1.06 g/L at 31 °C and 371 torr. If the substance has the following percent composition: 88.8% C and 11.2% H, its molecular formula is ________.

Accepted Answer

A)  CH₃ 
B)  C₂H₃ 
C)  C₄H₆ 
D)  C₂H₅ 
A)  CH₃ 
B)  C₂H₃ 
C)  C₄H₆ 
D)  C₂H₅

Question 13

1 torr is equal to 1 cm Hg. 1 atm = 760 torr.

Accepted Answer

A) True 
 B)False

Question 14

The number of moles of hydrogen gas present in a 1,500 mL container at 298 K and 2.0 atm pressure is ________.

Accepted Answer

A)  0.65 moles 
B)  0.12 moles 
C)  0.26 moles 
D)  0.52 moles 
A)  0.65 moles 
B)  0.12 moles 
C)  0.26 moles 
D)  0.52 moles

Question 15

Pressure is defined as ________.

Accepted Answer

A)  the amount of force per unit area 
B)  the amount of force per unit volume 
C)  the amount of work per unit area 
D)  the amount of work per unit volume 
A)  the amount of force per unit area 
B)  the amount of force per unit volume 
C)  the amount of work per unit area 
D)  the amount of work per unit volume

Question 16

14.0 g of nitrogen gas will occupy ________ at STP.

Accepted Answer

A)  1.12 L 
B)  2.24 L 
C)  11.2 L 
D)  22.4 L 
A)  1.12 L 
B)  2.24 L 
C)  11.2 L 
D)  22.4 L

Question 17

STP conditions stand for ________.

Accepted Answer

A)  0 K, 1 atm 
B)  0 °C, 760 cm Hg 
C)  0 °C, 760 mm Hg 
D)  0 K, 76 cm Hg 
A)  0 K, 1 atm 
B)  0 °C, 760 cm Hg 
C)  0 °C, 760 mm Hg 
D)  0 K, 76 cm Hg

Question 18

Match the event to the corresponding consequence.
-At constant temperature, as volume decreases, ________.

Accepted Answer

A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases 
A) pressure decreases 
B) volume decreases 
C) volume increases 
D) temperature decreases 
E) pressure increases
F)temperature increases

Question 19

If the pressure of a given gas sample doubles, what happens to the volume of gas? The amount of gas and the temperature of the gas stay the same.

Accepted Answer

A)  increase by a factor of 2 
B)  decrease by a factor of 2 
C)  stay exactly the same 
A)  increase by a factor of 2 
B)  decrease by a factor of 2 
C)  stay exactly the same

Question 20

0.249 g of a diatomic element occupies a volume of 125. mL at 120. °C and 2.00 atm. This element is ________.

Accepted Answer

A)  nitrogen 
B)  oxygen 
C)  chlorine 
D)  bromine 
A)  nitrogen 
B)  oxygen 
C)  chlorine 
D)  bromine

As the temperature of a gas increases, its pressure increases as long as the volume is kept constant.

Which of the following gases occupy the largest volume at STP?

Match the event to the corresponding consequence. -At constant volume, as temperature decreases, ________.

At sea level, if a low pressure system comes through then the atmospheric pressure is below 760 mm Hg.

The molar volume of an ideal gas is ________.

Match the number of moles with each of the following quantities of substances, measured at STP. -0.500 mole

Match each set of two variables of an ideal gas with its corresponding relationship (proportional or inversely proportional). -pressure and volume

The density of hydrogen gas at STP is ________.

Match the event to the corresponding consequence. -At constant pressure, as temperature increases, ________.

Find the number of liters occupied by 3.0 g of nitrogen gas at STP.

A gas occupies 2.00 L at 298 K and 2.10 atm. The volume of this gas at STP is ________.

An unknown gaseous substance has a density of 1.06 g/L at 31 °C and 371 torr. If the substance has the following percent composition: 88.8% C and 11.2% H, its molecular formula is ________.

1 torr is equal to 1 cm Hg. 1 atm = 760 torr.

The number of moles of hydrogen gas present in a 1,500 mL container at 298 K and 2.0 atm pressure is ________.

Pressure is defined as ________.

14.0 g of nitrogen gas will occupy ________ at STP.

STP conditions stand for ________.

Match the event to the corresponding consequence. -At constant temperature, as volume decreases, ________.

If the pressure of a given gas sample doubles, what happens to the volume of gas? The amount of gas and the temperature of the gas stay the same.

0.249 g of a diatomic element occupies a volume of 125. mL at 120. °C and 2.00 atm. This element is ________.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

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Exam 11: What If There Were No Intermolecular Forces - the Ideal Gas

As the temperature of a gas increases, its pressure increases as long as the volume is kept constant.

Which of the following gases occupy the largest volume at STP?

Match the event to the corresponding consequence. -At constant volume, as temperature decreases, ________.

At sea level, if a low pressure system comes through then the atmospheric pressure is below 760 mm Hg.

The molar volume of an ideal gas is ________.

Match the number of moles with each of the following quantities of substances, measured at STP. -0.500 mole

Match each set of two variables of an ideal gas with its corresponding relationship (proportional or inversely proportional). -pressure and volume

The density of hydrogen gas at STP is ________.

Match the event to the corresponding consequence. -At constant pressure, as temperature increases, ________.

Find the number of liters occupied by 3.0 g of nitrogen gas at STP.

A gas occupies 2.00 L at 298 K and 2.10 atm. The volume of this gas at STP is ________.

An unknown gaseous substance has a density of 1.06 g/L at 31 °C and 371 torr. If the substance has the following percent composition: 88.8% C and 11.2% H, its molecular formula is ________.

1 torr is equal to 1 cm Hg. 1 atm = 760 torr.

The number of moles of hydrogen gas present in a 1,500 mL container at 298 K and 2.0 atm pressure is ________.

Pressure is defined as ________.

14.0 g of nitrogen gas will occupy ________ at STP.

STP conditions stand for ________.

Match the event to the corresponding consequence. -At constant temperature, as volume decreases, ________.

If the pressure of a given gas sample doubles, what happens to the volume of gas? The amount of gas and the temperature of the gas stay the same.

0.249 g of a diatomic element occupies a volume of 125. mL at 120. °C and 2.00 atm. This element is ________.

What Is Chemistry

The Numerical Side of Chemistry

The Evolution of Atomic Theory

The Modern Model of the Atom

Chemical Bonding and Nomenclature

The Shape of Molecules

Intermolecular Forces and the Phases of Matter

Chemical Reactions

Stoichiometry and the Mole

Electron Transfer in Chemical Reactions

Solutions

When Reactants Turn Into Products

Chemical Equilibrium

Electrolytes, Acids, and Bases

Nuclear Chemistry

The Chemistry of Carbon

Synthetic and Biological Polymers

Filters