Question

properties of plaster of paris​

Answer 1

formula=CaSo4.1/2h2o

molar mass=145

preparation =CaSo4+1/2h2o+3/2h2o------>CaSo4.1/2H2o+3/2H2o

physical property =it is white powdered form

uses=it is used for making toys.

it is used for medical pirpose. like for joining break bones..

it is used for decoration purposes......

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Answer 2

Answer:

COLOR AND STATE

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it is a white powder.

REACTION WITH WATER

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When it mixed with water , it sets to hard mass . This is due to the rehydration of plaster of paris to gypsum.

CaSO4.½H2O+¹½H2O-->CaSO4.2H2O