Question

2 NH₃  +  3 CuO → 3 Cu  +  N₂  +   3 H₂O

In the above equation, how many grams of N₂ can be made when 6.9 moles of CuO are consumed?

Round your answer to the nearest tenth. If your 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.:

Answer 1

CuO$:$ N₂ $=3:1$

Molar mass of N₂ $=28g$

Moles of N₂ $=\frac{1}{3}×6.9=2.3$

Mass of N₂ $=2.3×28$

$=64.4g$