2NH3 + H2SO4 → (NH4)2SO4
44.8 lit 132 g
132 g of ammonium sulphate is produced by 2 x 22.4 lit of Ammonia
∴ 59 g of ammonium sulphate is produced by
= 2 × 22.4\over 132 × 59
= 20.02 lit. of Ammonia
Hence, 20.02 lit. of ammonia [at s.t.p.] is used to form 59 g of ammonium sulphate