Preparation Of Insoluble Salts

Question 1

Preparation of soluble salts

Answer 1

Add magnesium in excess&raquo_space; to ensure all the acid reacts
2. Filter off unreacted magnesium

Question 2

Obtaining crystals

Answer 2

Heat to evaporate excess water
Cool the solution, upon cooling crystals form
Sprinkle with distilled water to remove impurities
Dry the crystals by pressing them between dry filter paper