Question

66g of ammonium sulphate is produced by the action of ammonia on sulphuric acid. Write a balanced equation and calculate mass of ammonia required.

Answer 1

\[\ce{2NH3 + H2SO4 -> [NH4]2SO4}\]

Mass of Ammonia = 2 [NH₃] = 2 [14 + 3] = 34 g

Mass of [NH₄]₂SO₄ = 2 [14 + 4] + 32 + 64 = 132 g

Gas used to produce 132 g of (NH₄)SO₄ = 34 g

∴ Gas used to produce 66 g of (NH₄)SO₄

= `(34 xx 66)/132`

= 17 g