Question

What happens when plaster of Paris is recrystallized?

Answer 1

Answer:

Water of crystallization is the fixed no. of water molecules present in one formula unit of a salt in its crystaline form.plaster of paris is obtained from on careful heating of gypsum. on careful heating of gypsum at 373k , it loses water molecules partially to become calcium sulphate hemihydrate. this is called plaster of paris (CaSO4.1/2 H2O). plaster of paris is a white powder and on mixing with water, it sets into hard solid mass due t the formation of gypsum.                                  CaSO4. 1/2 H2O+1 1/2 H2O = CaSO4. 2H2O.

Answer 2

Answer:

when plaster of paris is recrystallised it forms a Gypsum.

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