Question 1

0.0309 atm is equal to 23.5 cm Hg.

Accepted Answer

A) True 
 B)False  False

Question 2

Imagine a balloon that you blow up to a given size (fill with a given amount of air at a given temperature and pressure). What do you expect to happen if you suspend the balloon over a bunsen burner (gas flame)? (Assuming that the pressure does not change significantly).

Accepted Answer

A) increase significantly in size until it bursts 
B) decrease significantly in size 
C) stay exactly the same size as before 
D) One cannot say unless the composition of the gas is known. 
A) increase significantly in size until it bursts 
B) decrease significantly in size 
C) stay exactly the same size as before 
D) One cannot say unless the composition of the gas is known. A

Question 3

380 mm Hg is equal to ________ atm.

Accepted Answer

A) 0.500 
B) 2.00 
C) 5.00 
D) 20.00 
A) 0.500 
B) 2.00 
C) 5.00 
D) 20.00 A

Question 4

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

Accepted Answer

A) 67 L 
B) 7.5 L 
C) 4.8 L 
D) 0.13 L 
A) 67 L 
B) 7.5 L 
C) 4.8 L 
D) 0.13 L

Question 5

The ideal gas law may be applied also to a mixture of gases, such as air, assuming that the molecular weight is the average molecular weight of that mixture.

Accepted Answer

A) True 
 B)False

Question 6

Increasing the temperature of a gas from 100 °C to 200 °C will cause the volume to double.

Accepted Answer

A) True 
 B)False

Question 7

A gas occupies a volume of 0.500 L at 125 °C and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm?

Accepted Answer

A) (0.689 × 0.750 × 125)/(0.443 × 0.500) 
B) (0.443 × 0.500 × 398)/(0.689 × 0.750) 
C) (0.443 × 0.500)/(0.689 × 0.750 × 398) 
D) (0.689 × 0.750 × 398)/(0.443 × 0.500) 
A) (0.689 × 0.750 × 125)/(0.443 × 0.500) 
B) (0.443 × 0.500 × 398)/(0.689 × 0.750) 
C) (0.443 × 0.500)/(0.689 × 0.750 × 398) 
D) (0.689 × 0.750 × 398)/(0.443 × 0.500)

Question 8

The density of carbon tetrachloride at 0.94 atm and 398 K is ________.

Accepted Answer

A) 1.11 g/L 
B) 2.21 g/L 
C) 4.43 g/L 
D) 8.86 g/L 
A) 1.11 g/L 
B) 2.21 g/L 
C) 4.43 g/L 
D) 8.86 g/L

Question 9

The volume of 2.3 g nitrogen gas at STP is ________.

Accepted Answer

A) 1.8 L 
B) 11.2 L 
C) 22.4 L 
D) 44.8 L 
A) 1.8 L 
B) 11.2 L 
C) 22.4 L 
D) 44.8 L

Question 10

The boiling point of water is 373 K.

Accepted Answer

A) True 
 B)False

Question 11

A gas occupies a volume of 480 mL at 127 °C and 140 mm Hg. What mathematical expression will yield the correct volume at 177 °C and 400 mm Hg?

Accepted Answer

A) 480 × (140/400)× (450/400) 
B) 480 × (400/140)× (450/400) 
C) 480 × (140/400)× (400/450) 
D) 480 × (400/140)× (400/450) 
A) 480 × (140/400)× (450/400) 
B) 480 × (400/140)× (450/400) 
C) 480 × (140/400)× (400/450) 
D) 480 × (400/140)× (400/450)

Question 12

Assuming that the temperature and quantity of a gas sample remain constant, what will be the final pressure of a 1.6 L sample of a gas originally at 330 K and 4.84 atm, when the volume is reduced
To 840 mL?

Accepted Answer

A) 9.22 atm 
B) 4.61 atm 
C) 18.44 atm 
D) 3.66 atm 
A) 9.22 atm 
B) 4.61 atm 
C) 18.44 atm 
D) 3.66 atm

Question 13

0.15 atm is equal to ________.

Accepted Answer

A) 11.4 torr 
B) 114 torr 
C) 1.14 × 10-5 torr 
D) 1.14 × 10-3 torr 
A) 11.4 torr 
B) 114 torr 
C) 1.14 × 10-5 torr 
D) 1.14 × 10-3 torr

Question 14

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 15

Assuming that the pressure and quantity of a gas sample remain constant, what will be the final volume of a 4.86 L sample of a gas originally at 281 °C when heated to 300 °C?

Accepted Answer

A) 5.03 L 
B) 3.89 L 
C) 2.92 L 
D) 2.78 L 
A) 5.03 L 
B) 3.89 L 
C) 2.92 L 
D) 2.78 L

Question 16

The density of hydrogen gas at STP is ________ the density of oxygen under identical conditions.

Accepted Answer

A) four times larger than 
B) eight times larger than 
C) sixteen times smaller than 
D) equal to, since both densities are taken under the same conditions 
A) four times larger than 
B) eight times larger than 
C) sixteen times smaller than 
D) equal to, since both densities are taken under the same conditions

Question 17

The typical units for the density of gases are g/L.

Accepted Answer

A) True 
 B)False

Question 18

What weight of nitrogen gas will occupy a volume of 1.25 L at a pressure of 1 atm and a temperature of 200.°C?

Accepted Answer

A) 0.45 g 
B) 0.90 g 
C) 1.80 g 
D) 3.60 g 
A) 0.45 g 
B) 0.90 g 
C) 1.80 g 
D) 3.60 g

Question 19

The freezing point of water is 0 K.

Accepted Answer

A) True 
 B)False

Question 20

The number of moles of oxygen that are present in a 15-L container at STP is ________.

Accepted Answer

A) 0.1 
B) 0.67 
C) 0.89 
D) 336 
A) 0.1 
B) 0.67 
C) 0.89 
D) 336

0.0309 atm is equal to 23.5 cm Hg.

Imagine a balloon that you blow up to a given size (fill with a given amount of air at a given temperature and pressure). What do you expect to happen if you suspend the balloon over a bunsen burner (gas flame)? (Assuming that the pressure does not change significantly).

380 mm Hg is equal to ________ atm.

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

The ideal gas law may be applied also to a mixture of gases, such as air, assuming that the molecular weight is the average molecular weight of that mixture.

Increasing the temperature of a gas from 100 °C to 200 °C will cause the volume to double.

A gas occupies a volume of 0.500 L at 125 °C and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm?

The density of carbon tetrachloride at 0.94 atm and 398 K is ________.

The volume of 2.3 g nitrogen gas at STP is ________.

The boiling point of water is 373 K.

A gas occupies a volume of 480 mL at 127 °C and 140 mm Hg. What mathematical expression will yield the correct volume at 177 °C and 400 mm Hg?

Assuming that the temperature and quantity of a gas sample remain constant, what will be the final pressure of a 1.6 L sample of a gas originally at 330 K and 4.84 atm, when the volume is reduced To 840 mL?

0.15 atm is equal to ________.

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

Assuming that the pressure and quantity of a gas sample remain constant, what will be the final volume of a 4.86 L sample of a gas originally at 281 °C when heated to 300 °C?

The density of hydrogen gas at STP is ________ the density of oxygen under identical conditions.

The typical units for the density of gases are g/L.

What weight of nitrogen gas will occupy a volume of 1.25 L at a pressure of 1 atm and a temperature of 200.°C?

The freezing point of water is 0 K.

The number of moles of oxygen that are present in a 15-L container at STP 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

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

0.0309 atm is equal to 23.5 cm Hg.

Imagine a balloon that you blow up to a given size (fill with a given amount of air at a given temperature and pressure). What do you expect to happen if you suspend the balloon over a bunsen burner (gas flame)? (Assuming that the pressure does not change significantly).

380 mm Hg is equal to ________ atm.

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

The ideal gas law may be applied also to a mixture of gases, such as air, assuming that the molecular weight is the average molecular weight of that mixture.

Increasing the temperature of a gas from 100 °C to 200 °C will cause the volume to double.

A gas occupies a volume of 0.500 L at 125 °C and 0.443 atm. What mathematical expression will yield the correct temperature at 0.750 L and 0.689 atm?

The density of carbon tetrachloride at 0.94 atm and 398 K is ________.

The volume of 2.3 g nitrogen gas at STP is ________.

The boiling point of water is 373 K.

A gas occupies a volume of 480 mL at 127 °C and 140 mm Hg. What mathematical expression will yield the correct volume at 177 °C and 400 mm Hg?

Assuming that the temperature and quantity of a gas sample remain constant, what will be the final pressure of a 1.6 L sample of a gas originally at 330 K and 4.84 atm, when the volume is reduced To 840 mL?

0.15 atm is equal to ________.

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

Assuming that the pressure and quantity of a gas sample remain constant, what will be the final volume of a 4.86 L sample of a gas originally at 281 °C when heated to 300 °C?

The density of hydrogen gas at STP is ________ the density of oxygen under identical conditions.

The typical units for the density of gases are g/L.

What weight of nitrogen gas will occupy a volume of 1.25 L at a pressure of 1 atm and a temperature of 200.°C?

The freezing point of water is 0 K.

The number of moles of oxygen that are present in a 15-L container at STP 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