If compound X is CuSO4.5H2O, how many water molecules are present in one formula unit of X?
If X = 2CuSO4.10H2O. How many water molecules are present in one formulae unit of X?
How many molecules of water of crystallisation (per formula unit) are present in :
(a) copper sulphate crystals ?
(b) washing soda ?
(c) gypsum ?