Renegade

Alrighty, thanks! Could you point me in the direction of which section to read? Cause alot of these seem similar.. but... I'm not sure which one I read for each problem. Thx...

We turned it in... and uhm, we didn't really go over this, it's a problem in a packet... We did mole-to-mole, but not these. Anyhow, the class im taking is "Chemistry in the Community" -- It's not Chemistry itself.. so Stoichiometry was not covered in the textbook... And our teacher doesn't generally help us... So yeah.

Need some help guys! 1) Equation: N2 + 3H2 ---> 2NH3 (N subscript 2 + 3 (H subscript 2) equals 2NH(subscript 3) Problem: What volume of NH3 is produced if 25.0g of N2 is reacted with an excess of H2? Can someone explain this one... and: 2KClO3 ----> 2KCl + 3O2 If 5.0 g of KClO3 is decomposted, what volume of O2 is produced at STP? Some help, walkthroughs, pages that explain how to do this exactly... would be great. Needed ASAP!