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Help. The answers online are not correct, and I need help. I will give brainliest, if you get it correct. NO SPAM!!!
2 NH3 + 3 CuO g 3 Cu + N2 + 3 H2O

In the above equation how many grams of N2 can be made when 167 grams of CuO are consumed?

Round your answer to the nearest tenth. If you answer is a whole number like 4, report the answer as 4.0

Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.:


Hydrogen

1

Nitrogen

14

Copper

63.5

Oxygen

16

Respuesta :

Anii89

Answer:

19.6 g rounded to the nearest tenth

Explanation:

First we have to find the number of moles of CuO.

n=m/M

M CuO = 63.5 x 16

              79.5 g/mol or gmol-1

M N2= 2×14 = 28g/mol

167/79.5= 2.1 mol CuO

3 moles of Cuo = 1 mole of N2

2.1 moles of Cuo = x mole of N2

2.1x1/3=0.7 mole of N2

n=m/M

m=nxM

m=0.7 x 28 = 19.6 g N2

So 19.6 g of N2

Hope this helps!

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