Thread: How does changing the mass of a reactant affect the volume of gas produced?

We're learning about gases in chemistry right now, and I don't understand this question on an assignment. If it makes any difference, part of the assignment deals with the reaction between Magnesium and Hydrochloric Acid.

Well, according to the ideal gas law, which is pv = nRT, volume is v = nRT/p

And since n, the number of moles, is n = m/M, (where m = mass)...

The volume would increase as the mass increases.

I learned this last year, and I'm not sure if this is right, but I hope it helps.