Homework Help: chemistry

Posted by tina on Wednesday, March 5, 2008 at 9:40pm.

for the reaction: 4NH3+5O2=4NO+6H2O; 15.0g of NH3 and 27.5g of O2 were reacted.
a). which is the limiting reactant?
b).how many moles of NO are formed from the limiting reactant in the above reaction.
what would be the first step in this problem?

chemistry - DrBob222, Wednesday, March 5, 2008 at 10:14pm
How much of this do you know how to do? Be specific. I can help you through it but I'm not inclined to work it in detail if you already know how to do some of it.
chemistry - tina, Thursday, March 6, 2008 at 2:49pm
i know how to do the moles but i couldnt figure out which one is the limiting reactant. to do the moles first i figured out the molecular weight for NO(30.01). but i dont understand what the mass in grams will be.

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