Only one half of water molecule is shown in the formula of plaster of

1.	Only one half of water molecule is shown in the formula of plaster of Paris. Why
Answer» It is in the form of a white powder. When the powder of Plaster of Paris is mixed with water, it becomes hard and solid gypsum. ... In , only half a water molecule is shown as the water of crystallization because two molecules of CaSO4 share one molecule of wateror\xa0Formula of plaster of Paris is CaSO4.1/2 H2OIt is not possible to have half a molecule of water.The formula CaSO4.1/2 H2O over here actually means that two molecules of CaSO4\xa0share one molecule of water.The formula of plaster of Paris can also be written as 2CaSO4. H2O.

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