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May 23, 2015

Homework Help: Chemistry

Posted by Mike on Wednesday, January 9, 2008 at 8:37pm.

Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s.

4NH3 + 7O2 --> 4NO2 + 6H2O

1)How many grams of oxygen are necessary to produce 4.50 moles of NO2?

answer: 252 grams

2)How many molecules of water are produced when 2.25 moles of ammonia are completely reacted?

answer: 3.38 moles

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