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## Homework Statement

What weight of O

_{2}in grams will be required to react with exactly 100 grams of NH

_{3}ascending to the eq.

NH

_{3}+O

_{2}--->NO+H

_{2}O

## Homework Equations

I think none.

## The Attempt at a Solution

I don't have any attempt on this problem because my brother only ask for my assistance regarding this assignment and he too doesn't know how to start this problem- the fact that it is under their next lesson.

I just want to help my brother, so I risk to post it here. I hope somebody would help me and will explain how the solution goes so that i can relay it to him. Thanks :)