Question

What is the mass in grams of H₂ that can be formed from 55.0 grams

of NH3 in the following reaction?
2 NH3(g) → 3 H₂(g) + N₂(g)

Answer 1

9.706 grams of H2

Step-by-step explanation:

55 / molar mass of NH3 (17 grams) = 3.235 moles

3.235 mol of NH3 / 2 mol of NH3 = 1.618

1.618 × 3 mol of H2 = 4.853 mol of H2

4.853 × molar mass of H2 (2 grams) = 9.706 grams