chemistry q?

Question

2H2O(l) --> 2H2O(l) + O2(g)

a) how will you determine the mass and number of moles of oxygen produced?

b) how will you determine the volume of oxygen produced?

need help guys!

Answer 1

I suppose you mean 2H2O2 as your reactant.

You need to know how many moles of H2O2 you had to start with. 1 mol of H2O2 gives you 1/2 mol O2 (from your equation). Then use

PV = nRT

Principles: use chemical equations to balance number of moles. Use the universal gas law to find out properties of gases.