General Science • ChemistryEasy
What is the chemical formula of Plaster of Paris?
A. CaSO4.2H2O
B. CaSO4.0.5H2O✓ Correct Answer
C. CaSO4
D. CaO
💡 Solution & Explanation
Plaster of Paris is chemically a calcium sulfate hemihydrate represented by the formula CaSO4.0.5H2O, formed by heating gypsum to a specific temperature. When mixed with water, it rehydrates and sets into a hard mass of gypsum.
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