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Question

What is obtained when gypsum is heated at 373K?


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Solution

Gypsum:

  • Gypsum is the common name for calcium sulfate dihydrate having the chemical formula, CaSO4.2H2O.

Chemical Reaction:

  • Heating gypsum at 373K results in loss of water of crystallization, forming plaster of Paris (CaSO4.12H2O) as the product.
  • The chemical reaction is as follows,
  • CaSO4.2H2OCaSO4·12H2O+32H2O

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