What is the chemical formula for Plaster of Paris ? How is it prepared – InterviewSolution

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1.	What is the chemical formula for Plaster of Paris ? How is it prepared ? State the common and the chemical names of the compound formed when Plaster of Paris is mixed with water.
Answer» Solution :`CaSO_4. 1/2 H_2O ` PLASTER of Paris is prepared by heating gypsum to a TEMPERATURE of 393 K . `UNDERSET("Gypsum")(CaSO_4. 2H_2O) overset(393K)to underset("Calcium SULPHATE hemihydrate")(CaSO_4. 1/2 H_2O + 3/2 H_2O)`.

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