If your good at chemistry please help me with these equations

I'm just checking my answers I want to make sure I have a 100%. I screen shot it so it would be easier to read. Thanks in advance. There's 5 but you don't have to do all if you don't want. I would be thankful if you did though. Thanks

http://i52.tinypic.com/29fc706.jpg

Its all stoichiometry,

1. 43.875 g of H20

2. 111.529 g of S8

3. 2 Molecules of ammonia produced, 1 molecule of N2 remains , 0 H2
Limiting is Hydrogen, (Put 3 more molecules of H2, to fully utilise the reactants)

4. 0.2 Moles of NH3, 0.017 moles of h2 remains, N2 is fully utilized

5. 0.314 is actual yield of Iron
Theoretical is 0.56 moles