[FirstStryke]

 ???Hi I am currently in the process of doing a lab write-up on the reaction of potassium chlorate oxidizing in the presence of a manganese dioxide catalyst and heat and one of the questions in the lab asks if Avogadro's hypothesis can be derived from the ideal gas law, if so explain.  Since it is asking for an explanation in this situation I believe it is safe to assume it can be done.  The problem now is I am unsure where to begin this problem or furthermore how to prove it.  Any assistance would be appreciated, thanks.

[Yggdrasil]

Avogadro's hypothesis is that (at the same temperature and pressure) equal volumes of gas contain equal numbers of molecules.  Stated differently, you could says that V₁/n₁ = V₂/n₂ or that the ratio, V/n, is constant for an ideal gas (at constant temperature and pressure).  The proof of these statements is trivial.