Unit 9 Review

Question 1

A gas that exerts a pressure of 537 torr in a container with a volume of 5.30 L will exert a pressure of 255 torr when transferred to a container with a volume of ___L.

Answer 1

11.1611765

Question 2

A gas that exerts a pressure of 6.20 atm in a container with a volume of __ mL will exert a pressure of 9.150 atm when transferred to a container with a volume of 322 mL.

Answer 2

475.209638

Question 3

When the volume of a gas is changed from 800 cm^3 to 400 cm^3, the temperature will change from 115°C to ___ degrees Celsius.

Answer 3

-79°C

Question 4

When the volume of a gas is changed from __L to4.50 L, the temperature will change from 38.1°C to 15°C.

Answer 4

4.86

Question 5

When the pressure that a gas exerts on a sealed container changes from 1100 bar to 75.5 bar, the temperature changes from K to 298K.

Answer 5

4342

Question 6

When the pressure that a gas exerts on a sealed container changes from 767 mm Hg to 800 mm Hg, the temperature changes from 325K to K.

Answer 6

339

Question 7

A gas is contained in a thick walled balloon. When the pressure changes from 100 kPa to 90.0 kPa, the volume changes from 2.50 L to 3.75 L and the temperature changes from 303 K to ___ K.

Answer 7

409.05

Question 8

A gas is contained in a thick-walled balloon. When the pressure changes from 1417 psi to ___ psi, the volume changes from 0.145 L to 0.878 L and the temperature changes from 287 K to 196 K.

Answer 8

160

Question 9

What volume (in liters) does 2.895 moles of oxygen occupy at STP?

Answer 9

64.848

Question 10

How many moles of carbon dioxide are contained in 237.8 L at STP?

Answer 10

10.62

Question 11

What is the density (in g/L) of a gas with a molar mass of 28.26 g/mol at 3.510 atm and 237 K?

Answer 11

5.1

Question 12

What is the molar mass of 18.12 g of gas exerting a pressure of 3.05 atm on the walls of 5.85 L container at 280 L?

Answer 12

23.3