What would you observe in the following case:
Concentrated Sulphuric acid is added dropwise to the crystals of hydrated Copper Sulphate.

Open in App

Solution

Dehydration of hydrated copper sulphate:
When concentrated Sulphuric acid ( $H_{2} {SO}_{4}$ ) is added dropwise to the crystals of hydrated Copper sulphate $({CuSO}_{4 \cdot} 5 H_{2} O)$ , it changes the colour of hydrated copper Sulphate from blue to white.
$H_{2} {SO}_{4}$ acts as a dehydrated agent, it removes the water molecule from the compound and forms the anhydrous Copper sulphate which has white colour.
Balanced chemical equation:
$\underset{Hydrated Copper sulphate}{{CuSO}_{4} \cdot 5 H_{2} O (s)} \overset{conc . H_{2} {SO}_{4}}{\to} \underset{Anhydrous Copper sulphate}{{CuSO}_{4} (s)} + \underset{Water}{5 H_{2} O (l)}$
Hence, a change in the color of hydrated Copper sulphate from blue to white is observed.

Suggest Corrections

Similar questions

Q. State one appropriate observation for each of the following: Concentrated sulphuric acid is added drop wise to a crystal of hydrated copper sulphate.

What would you observe in the following cases?
(i) Sulphur trioxide is dissolved in water on a large scale.
(ii) Concentrated sulphuric acid is added to equal volumes of cold water.
(iii) 100 ml of 98% sulphuric acid is kept open.
(iv) Hot concentrated sulphuric acid is added to sodium chloride crystals.
(v) Dilute sulphuric acid is added to ferrous sulphate solution.

What would you observe in the following case:
Sugar crystals are added to hard glass test tube containing concentrated sulphuric acid.

What do you see when concentrated sulphuric acid is added to copper sulphate-5-water. (You are not required to say what is happening, nor is it necessary to name the products.)

Q. When concentrated sulphuric acid is added to copper sulphate it gives :

Join BYJU'S Learning Program

What would you observe in the following case:Concentrated Sulphuric acid is added dropwise to the crystals of hydrated Copper Sulphate.

What would you observe in the following case:
Concentrated Sulphuric acid is added dropwise to the crystals of hydrated Copper Sulphate.