A sample of 51.0 g of ammonia was reacted with excess copper oxide. How many moles of nitrogen would be produced? 2NH₃ (g) + 3CuO (s) → 3Cu (s) + 3H₂O (l) + N₂ (g)
A.
1.0 mole
B.
1.5 mole
C.
2.0 mole
D.
2.5 mole