Ammonia equation help!

Question

N₂(g) + 3H₂(g) → 2NH₃(g), if you have 3.64 g of H₂, how many grams of NH₃ can be produced?

Answer 1

N₂(g) + 3H₂(g) → 2NH₃(g)

use molar mass

3.64gH2 / 2.02gH2 =1.802 mol H2

use coefficients

1.802 mol H2 (2 mol NH3/3 mol H2) =1.2013 mol NH3

use molar mass

1.2013 mol NH3 (17.04gNH3/1molNH3)=20.5 g NH3