Gases

1.explain how to construct a barometer

2. what would have to be different in a water barometer

3. Explain what happens to molecules to cause the following law to work the way they do

A. Charles Law

B. Boyles Law

C. Gay Lussacs

Suppose an aerosal can contains a residual amount of gas at a pressure of 755mm Hg and a temperature of 25 celsius. What would the pressure be if the can were heated to 115 celsius?

I need an example of how to solve this problem please. The text book does not give an example with a volume to go by. I am really confused as to how I would solve this without a volume.

A gas has a volume of 50.0m3. Assuming that temperature remains constant, what volume would the gas occupy if the pressure is doubled?

Air is about 78.0% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.

What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior.

I am just struggeling a little with these concepts, and just need a little push in the right direction on which steps to take please!

a gas occupies a volume of 202mL at a pressure of 505 torr. To what pressure must the gas be subjected in order to change the volume to 65mL? Assume constant temperature.

I know the answer, I just dont know how to get there.

Does inflating a balloon with air, and then letting it deflate, relate to Boyle's gas law? If it doesn't relate to Boyle's gas law, then which gas law does it apply to?

My question I'm working on now is: For each of the pressure/volume sets, calculate the new volume of the gas sample after the pressure change is made. Assume that the temperature and amount of gas remain the same. V= 375mL at 1.15atm; V=?mL at 775mm Hg.

oxygen gas diffuses how many times faster than sulfur dioxide?

anyone can explain me how to design an experiment to find out how much oxygen there is in exhaled air?help me please :(

A gas mixture at a total pressure of 842 mm of mercury contains .100 moles of nitrogen and .800 moles of neon. What is the partial pressure of the two gases?