Question

(a) Outline the steps that would be necessary to convert insoluble lead (II) oxide into soluble lead chloride.

(b) write the balanced equations for the reactions, to convert insoluble lead (II) oxide into soluble lead choride.

(c) A solution of iron (III) chloride has a PH less than 7. Is the solution acidic or alkaline?

Answer 1

(a) Lead oxide is treated with dilute nitric acid to get soluble Lead nitrate. This Lead nitrate is treated with soluble Metallic chloride or dilute hydrochloric acid to get insoluble Lead chloride.

(b) PbO + 2HNO₃ (dil) ⟶ Pb(NO₃)₂ + H₂O

Pb(NO₃)₂ + 2NaCl ⟶ PbCl₂ + 2NaNO_3.

(c) Acidic