Separation of a mixture of soluble and insoluble solids
Describe how a mixture of barium sulphate and lead (II) chloride be separated in to pure solids. (2 marks)
Suggested resposponses
Add warm/hot distilled water to the mixture(½.
Filter to obtain barium sulphate as the residue and lead (II) chloride as the filtrate(½.
Wash the residue with warm/hot distilled water dry it between filter papers(½.
Heat the filtrate to evaporate the water and obtain solid lead(ii) chloride(½ OR cool the filtrate and filter, dry...
