Give experiment to show that blue vitriol crystals contain b
Water crystallisation
Answers
Answer:
take its crystal and heat it with a cover ,you will find water molecules in walls of container
The experiment to show that blue vitriol crystals contain b Water crystallisation
Explanation:
Water of crystallisation
It is defined as chemically combined water
Copper sulphate penta hydrate crystals or blue vitriol
Its molecular formula is (CuSO₄.5H₂O) : It has 5 molecules of water of crystallization .
Experiment to show that they contains water of crystallisation
1. Arrange the apparatus as shown
2. Take about 5 g of powdered hydrated copper(II) sulphate in the test-tube.
3.Start heating the blue copper(II) sulfate until turns white.
4. On heating , the blue vitriol looses its water of crystallization and turns anhydrous and as white powder .
5. The water will flow from discharge tube to container .
5. Allow the anhydrous copper(II) sulfate to cool back at room temperature.
The reaction involved is:
CuSO₅.5H₂O(s) (pale blue solid) ⇌ CuSO₄(s) (“dirty” white solid) + 5H₂O(l)
