why is one molecule of plaster of paris having a share of only half a water molecule?

Asked by SaiParvathi | 27th Aug, 2016, 07:14: PM

Expert Answer:

Formula of plaster of Paris is CaSO4.1/2 H2O

It 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 share one molecule of water.

The formula of plaster of Paris can also be written as 2CaSO4. H2O.

Answered by Vaibhav Chavan | 29th Aug, 2016, 12:21: PM