7. Gases

PRACTICE: A sample of nitrogen dioxide gas at 130 ºC and 315 torr occupies a volume of 1750 mL. What will the gas pressure be if the volume is reduced to 320 mL at 130 ºC?

A cylinder with a movable piston contains 0.615 moles of gas and has a volume of 295 mL. What will its volume be if 0.103 moles of gas escaped?

How many 3-liter balloons could the 12-L helium tank pressurized to 160 atm fill? Keep in mind that an "exhausted" helium tank is not empty. In other words, once the gas inside the tank reaches atmospheric pressure, it will no longer be able to fill balloons.

To what temperature must a balloon, initially at 25°C and 2.00 L, be heated in order to have a volume of 6.00 L?

A sample of oxygen gas has its absolute temperature halved while the pressure of the gas remained constant. if the initial volume is 400 mL, what is the final volume?

A sample of oxygen gas occupies a volume of 250 mL at 740 torr pressure