Chemistry
Give balanced equations for the preparation of the following salts –
(a) (i) CuSO4
(ii) NaHSO4
(iii) Na2SO4
(iv) FeSO4
(v) BaSO4
(vi) PbSO4 — using dil. H2SO4
(b) (i) NaHSO4
(ii) CuSO4 — using conc. H2SO4
Acids Bases Salts
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Answer
(a) Using dil. H2SO4 :
- Preparation of CuSO4:
CuO + H2SO4 ⟶ CuSO4 + H2O - Preparation of NaHSO4:
NaOH + H2SO4 ⟶ NaHSO4 + H2O - Preparation of Na2SO4:
Na2CO3 + H2SO4 ⟶ Na2SO4 + H2O + CO2 - Preparation of FeSO4:
Fe + H2SO4 ⟶ FeSO4 + H2 - Preparation of BaSO4:
BaCl2 + H2SO4 ⟶ BaSO4 + 2HCl - Preparation of PbSO4:
Pb(NO3)2 + H2SO4 ⟶ PbSO4 + 2HNO3
(b) Using conc. H2SO4 :
- Preparation of NaHSO4:
- Preparation of CuSO4:
CuO + H2SO4 ⟶ CuSO4 + H2O
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