Advertisements
Advertisements
Question
Write down the changes that will be seen in each instance and explain the reason behind them.
Pieces of blue vitriol were heated in a test tube. On cooling, water was added to it.
Advertisements
Solution
When pieces of blue vitriol are heated in a test tube, then the crystal structure of blue vitriol breaks down to form a colourless powder and water comes out. This water is called water of crystallization. when water is added to the same test tube, the white powder turns into a blue colour again. This is due to reversible reactions taking place from anhydrous salt to hydrous salt and vice-versa.
CUSO4 . 5H2O ↔ CUSO4 + 5H2O
APPEARS IN
RELATED QUESTIONS
Identify the odd one out and justify.
Write down the changes that will be seen in the instance and explain the reason behind them.
50 ml water is added to 50 ml solution of copper sulphate.
Explain water of crystallization.
The number of water molecules present in one molecule of copper sulphate is ______.
The molecular formula of copper sulphate pentahydrate is ______.
Salts containing water of crystallization are called ______ salts.
Salts that do not contain water of crystallization are called ______.
What is the water of crystallization?
