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brake4country
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Homework Statement
When gaseous ammonia is passed over solid copper (II) oxide at high temperatures, nitrogen gas is formed.
2NH3 + 3CuO → N2 + 3Cu + 3 H2O
What is the limiting reagent when 34 grams of ammonia form 26 grams of nitrogen in a reaction that runs to completion?
Homework Equations
The Attempt at a Solution
Using stoichiometry to find the solution in terms of N2, I get:
34 g NH3 x 1 mol NH3/17 g NH3 x 1 mol N2/2 mol NH3
= 1 mol N2
Then,
3 mol Cuo x 1 mol N2/3 mol CuO
= 1 mol N2
What am I doing wrong? I have tried this problem 7 times.