Water of Crystalisation
نص القصة المصورة
- What is this?! Why is it so hard?!
- Its a caste for your broken arm made out of Plaster of Paris.
- It is essentially Gypsum but with 3/4th its water of crystallization per formula unit
- Water of what?
- Let me explain
- A fixed number of water molecules present in one formula unit of a salt is called the water of crystallization of that salt.
- Example
- CaSO4
- 393 K
- POP
- These water molecules are bound by weak electro static forces and change some properties of the salts
- CuSO4
- Example
- 393 K
- CuSO4. 5H2O
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