Question

write the process of formation of copper sulphate crystals?​

Answer 1

Answer:

Core practical

Making copper sulfate crystals

There are a number of ways that you could make copper sulfate crystals in Chemistry. This is an outline of the required steps to undertake one of these methods.

Aims

To investigate the preparation of pure, dry hydrated copper sulfate crystals starting from copper oxide.

Method

Apparatus required for the core practical involving copper sulfate

Place some sulfuric acid in a conical flask and warm it in a water bath.

Add a spatula of copper oxide powder to the acid and stir with a glass rod.

Continue adding copper oxide powder until it is in excess.

Filter the mixture to remove the excess copper oxide.

Pour the filtrate (the copper sulfate solution) into an evaporating basin.

Heat the copper sulfate solution to evaporate half of the water.

Pour the solution into a watch glass and leave to allow all of the water to evaporate.

Results

Record the appearance of the copper sulfate crystals, including their colour and shape.

Analysis

Hydrated copper sulfate crystals should be blue and regularly shaped. Describe how your crystals compare to this description. Suggest an explanation for any differences.

Copper sulfate crystalsCopper sulfate crystals

Explanation:

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Answer 2

➢ Take some impure copper sulphate in a china dish and dissolve in minimum amount of water.

➢ Filter the solution to remove impurities.

➢ Heat the copper sulphate solution on water bath.

➢ When small crystals form on glass rods, stop heating.

➢ Allow the saturated solution to cool slowly.

➢ Crystals of pure copper sulphate are formed.

➢ Separate the copper sulphate crystals by filtration and dry.