Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

A student accidentally mixed three solids: lead (II) sulphate, copper (II) oxide and Iron (III) chloride. Describe how you would obtain a solid lead (II) sulphate from the mixture.

Answer Text:
Heat the mixture in a beaker covered with an evaporating dish containing cold water. Iron (III) chloride sublimes and collects on the lower part of the evaporating dish. Add dilute Sulphuric (II) acid// hydrochloric acid//Nitric (V) acid to the remaining mixture and stir to dissolve copper (II) oxide. Filter to obtain lead (II) sulphate as a residue. Dry the residue between filter papers.