Question

How is Plaster of paris chemically different from gypsum ? How can they be interconverted ?

Answer 1

When gypsum is heated, it loses water molecules to form PoP (Plaster of  Paris)

Gypsum is represented by the formula $CaSO_{4}.2 H_{2} 0$

PoP is represented by the formula $CaSO_{4}. \frac{1}{2} H _{2} O$

When PoP is mixed with water, it once again changes to gypsum.

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NISHTHA

Answer 2

Answer:

Plaster of Paris is different from Gypsum in term of water of crystallization. Gypsom has 2 mole of water of crystallization where as Plaster of Paris has half mole of water of crystallization. Plaster of Paris is prepared from heating gypsum.

Explanation:

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