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Plan an experiment to prepare pure dry crystals of copper(II) sulfate. Include the apparatus required and describe the method you would use. You may include a diagram if that helps you answer the question.
Chemistry 5070 · O Level · Preparation of salts
Preparation of salts — practice question
Copper(II) sulfate is a salt used for killing pests on plant leaves. It is made by neutralising dilute sulfuric acid with solid copper(II) oxide. Devise an experiment to obtain pure dry crystals of copper(II) sulfate. Your plan should make use of common laboratory apparatus, dilute sulfuric acid, and solid copper(II) oxide. No other chemicals should be used.
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This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Gently warm and stir dilute sulfuric acid with solid copper(II) oxide” …
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