Question

How are the following salts prepared:

(a) Calcium sulphate from calcium carbonate,

(b) Lead (II) oxide from lead,

(c) Lead carbonate from lead nitrate,

(d) Sodium nitrate from sodium hydroxide,

(e) Magnesium carbonate from magnesium chloride,

(f) Copper 

(II) sulphate from copper 

(II) oxide?

Answer 1

(a) Calcium sulphate from calcium carbonate: By decomposition of calcium carbonates by acids.

(b) Lead (II) oxide from lead: Lead oxide can be prepared from lead by Direct combination.

(c) Lead carbonate from lead nitrate: Lead carbonate is prepared from lead nitrate by precipitation (double decomposition) with Sodium carbonate.

(d) Sodium nitrate from sodium hydroxide: Sodium nitrate is prepared from sodium hydroxide by neutralizing it with nitric acid.

(e) Magnesium carbonate from Magnesium chloride: Magnesium carbonate from Magnesium chloride can be prepared by double decomposition with Sodium carbonate.

(f) Copper 

(II) sulphate from copper 

(II) oxide: Copper sulphate can be prepared from copper oxide by action with sulphuric acid