PLZ help me with these crazy ap chem problems

It_sGr82BeAGator
Fri, 28 Sep 2007 00:06:35 +0000

If you lose 20% of H2 while filling the balloon, then you need 5 times the volume of the balloon to completely fill the balloon. Now that you have the volume of H2 needed, use PV=nRT to find the number of moles of H2 needed, and that’s how many moles of Fe and H2SO4 you need (since it’s a 1:1 ratio for all reactants/products) From there, it’s easy to find out the mass of each reactant