[McAxl]

I am trying to solve the following problem:
0.820 moles of H has a volume of 2.00L at constant temp and pressure, what is the volume at 0.125 mol at the same temp and pressure? 

If someone provides an answer please be sure to include the method for solving, I believe that the method uses Avagadro's gas law, but I cant tell how. 

[enahs]

If someone provides an answer please be sure to include the method for solving, I believe that the method uses Avagadro's gas law, but I cant tell how.

Well if you think that is the way to work it, why do you not try that method and see what the result is?

[McAxl]

I cannot find nor figure how to use the gas law to solve the problem, in my textbook, or from anyone so far online.

If you can be of help please dont hesitate, I have a test tonite and my instructor is not the most thorough of teachers

[Borek]

What does Avogardo's law tell you about dependence between number of moles of gas and its volume? What happens to the volume if you increase number of moles twice? What if you decrease it 0.125/0.820 times?

[english]

Pay attention to what your constants are.