If the percentage of water of crystallization in `MgSO_(4) .x H_(2)O` is `13%`. What is the value of `x` :

The percentage by weight of hydrogen in H_(2)O_(2) is

The percentage of hydrogen in H_2O is

Chlorine water on cooling deposits greenish yellow crystals of formula CI_(2).XH_(2)O . What is the value of X ?

Calculate the percentage of water of crystallisation in the sample of Mohr salt, FeSO_(4)(NH_(4))_(2)SO_(4).6H_(2)O