Answers

2015-09-26T00:20:35+05:30
water molecules forming an essential part of the crystal structure of some compounds.

                                   OR
water of crystallisation means the number of water molecules present in one formula unit of a salt. means, for eg:

CaSO4.2H2O this iz called Calcium Sulpahte di-hydrate or is popularly known as gypsum.

u notice CaSO4(Calcium Sulphate) is a one formula unit of a salt and is crystalised with 2 water molecules (2H2O)...

similarly CaSO4.1/2H20 Calcium Sulphate hemi-hydrate or popularly known as Plaster of Paris.





thank Q !
hope helped u .. dear frnd
plzz pick my answer as the best .. if it helps u
click thanks ...

gud luck ...

1 5 1
2015-09-26T15:31:45+05:30
Some salts,while crystallising out from their solutions ,unite with a definite quantity of water ,which is known as water of crystallisation.

0