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- Oct 2, 2007
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It's simple guys. Don't laugh at me.
What is the limiting reagent when 34 grams of ammonia form 26 grams of nitrogen in a reaction that runs to completion?
2NH3 + 3CuO ----> N2 + 3Cu + 3H2O
The answer is CuO.
Can someone please work me through the math? I know it's something simple that I'm just not getting.
I have that the molecular weight of NH3 is 17 grams and there are two moles of it for 34 grams. The molecular weight of N2 is 28 grams. But how do you know the 34 grams was enough of NH3 to make N2? I just can't connect the dots.
What is the limiting reagent when 34 grams of ammonia form 26 grams of nitrogen in a reaction that runs to completion?
2NH3 + 3CuO ----> N2 + 3Cu + 3H2O
The answer is CuO.
Can someone please work me through the math? I know it's something simple that I'm just not getting.
I have that the molecular weight of NH3 is 17 grams and there are two moles of it for 34 grams. The molecular weight of N2 is 28 grams. But how do you know the 34 grams was enough of NH3 to make N2? I just can't connect the dots.