Question

66g of ammonium sulphate is produced by the action of ammonia on sulphuric acid. Write a balanced equation and calculate the volume of the gas used at STP.

Answer 1

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

Mass of Ammonia = 34 g

Mass of [NH₄]₂SO₄ = 132 g

Mass of H₂SO₄ = 98 g

Gas used for 132 g of (NH₄)SO₄ = 2 × 22.4 litres

∴ Gas used for 66 g of (NH₄)SO₄ = `(2 xx 22.4 xx 66)/132`

= 22.4 litres