Answer to Question #164782 in General Chemistry for leya naumchuk

Question

What is the mass in grams of CuO that would be required to produce 41.50 moles of nitrogen gas in the following chemical reaction?

2 NH₃(g) + 3 CuO(s) → 3 Cu(s) + N₂(g) + 3 H₂O(g)

Answer 1

From the balanced chemical,

Moles of CuO required = 3×41.5 = 124.5 mol

Mass of CuO = 124.5 × 56 = 6972 g

Mass of CuO =[ 6972 ] g