copper suphate and ferrors sulphate PPT explanation https://youtu.be/ZGML9OMv5Yg

1. Hydrated Salts
WATER OF CRYSTALLIZATION
Lavanya Bharathi Kannegolla
M .A., M.Sc.,B.Ed.,

2. What is hydrated salt……….?

3. Hydrated salt-------?
THE IONIC COMPOUNDS WHICH
HOLD A FIXED NUMBER OF WATER
MOLECULES WITH THEM ARE
CALLED HYDRATED SALTS

4. HERE U GOO……

5. EXAMPLES:
BLUE VITRIOL
COPPER SULPHATE PENTA HYDRATE
CuSO4 .5 H2O
GREEN VITRIOL
FERROUS SULPHATE HEPTA HYDRATE
FeSO4. 7 H2O

6. HOW COME WATER IN SALT………?
A FIXED NUMBER OF WATER
MOLECULES ARE HOLD BY EACH
MOLE OF HYDRATED SALTS
…..CALLED WATER OF
CRYSTALLISATION.

7. COPPER SULPHATE IS BLUE IN COLOUR…

8. ACTIVITY/OBSERVATION /INFERENCE
TAKE A LITTLE AMOUNT OF COPPER
SULPHATE PENTAHYDRATE IN A DRY TEST
TUBE AND HEAT IT INA BLUE FLAME OF
BUNSEN BURNER.
WATER DROPLETS FROM SALT COME OUT
AND ADHERE TO THE INNER WALLS OF
TEST TUBE
COPPER SULPHATE LOSES ITS BLUE
COLOUR DUE TO LOSS OF WATER.

9. COPPER SULPHATE IS BLUE IN COLOUR DUE TO
FIVE WATER MOLECULES IN EACH MOLE……

10. HEY ….HERE IS THE WATER COMING OUT
……………!!!!

11. EFFLORSCENCE
THE LOSS OF WATER OF CRSTALLIZATION
FROM A HYDRATED SALT
BEFORE HEATING AFTER HEATING
CuSO4 .5H2O  CuSO4 + 5 H2O
BLUE WHITE
Hydrated salt Anhydrous salt

12. OBSERVATION & INFERENCE
COPPER SULPHATE IS A HYDRATED SALT WHICH HOLDS FIVE
WATER MOLECULES WITH IT ,CALLED AS COPPER SULPHATE
PENTA HYDRATE.
ON HEATING IT LOOSES ITS FIVE MOLECULES OF WATER AND
HENCE BECOME ANHYDROUS WHITE SALT.
WHEN WATER IS ADDED THE SALT REGAINS THE BLUE COLOUR.
SO BLUE COLOUR OF COPPER SULPHATE IS DUE TO WATER
MOLECULES.

13. THANK YOU CHILDREN……