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Answers
Explanation:
Plaster of Paris is a chemical compound consisting of fine white powder, which hardens when exposed to moisture and allowed to dry. Its chemical formula of Plaster of Paris is CaSO4.1/2H2O and is better known as calcium sulfate hemihydrate
Preparation of Plaster of Paris
Plaster of Paris is synthesized from gypsum (CaSO4.2H2O). When gypsum is heated at 373 K, it loses its water molecules to become calcium sulphate (plaster of Paris).
CaSO4.2H2O → CaSO4.1/2H2O + 3/2H2O
Uses of Plaster of Paris
Plaster of Paris is used by doctors for supporting fractured bones in the right position.
It is used for making toys and decorative materials.
It is also used for increasing smoothness of surfaces.
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