Question

4NH3(g)+5O2(g)⟶4NO(g)+6H2O(g) how many molecules of H2O can be formed from 6.12mol NH3?

Answer 1

The answer to your question is 5.529 x 10²⁴ molecules of H₂O

Step-by-step explanation:

4NH₃ + 5O₂ ⇒ 4NO + 6H₂O

6.12 mol ? molecules

Rule of three (proportions)

4 mol of NH₃ ------------------- 6 mol of H₂O

6.12 mol of NH₃ --------------- x mol of H₂O

x = (6.12 x 6) / 4

x = 36.72 / 4

x = 9.18 mol of H₂O

1 mol of H₂O ------------------ 6.023 x 10²³ molecules

9.18 mol of H₂O ------------- x

x = (9.18 x 6.023 x 10²³) / 1

x = 5.529 x 10²⁴ molecules