Question

Iron[iii]oxide was found to be contaminated with copper[ii]sulphate. Describe how a pure sample of iron[iii]oxide can be obtained

Answer 1

Answer:

see below

Explanation:

Copper (II) sulphate dissolves while iron (III) oxide does not. Filter the mixture to obtain copper (II) sulphate solution as the filtrate and iron (III) oxide as the residue. Wash the residue with distilled water and dry it between two filter papers.Feb 2, 2017