Write balanced chemical equations, for the preparation of the given salts

Acids, Bases, Salts (10)

Write balanced chemical equations, for the preparation of the given salts (i) to (iii) by using the methods A to C respectively:

A: Neutralization; B: Precipitation; C: Titration

  1. Copper sulphate
  2. Zinc carbonate
  3. Ammonium sulphate

Answer

(i) CuO + H2SO4 → CuSO4 + H2O

Cu(OH)2 + H2SO4 → CuSO4 + 2H2O

CuCO3 + H2SO4 → CuSO4 + H2O + CO2

Cu(HCO3)2 + H2SO4 → CuSO4 + 2H2O + 2CO2

(ii) ZnCl2 + Na2CO3 → ZnCO3 + 2NaCl

(iii) 2NH4OH + H2SO4 → (NH4)2SO4 + 2H2O

2NH3 + H2SO4 → (NH4)2SO4

  • Exam Year: 2020