Answer : The integer 'x' in the hydrate is, 2
Explanation : Given,
Mass of hydrate = 4.31 g
Mass of anhydrous = 3.22 g
First we have to calculate the mass of water.
Mass of water = Mass of hydrate - Mass of anhydrous
Mass of water = 4.31 g - 3.22 g
Mass of water = 1.09 g
Now we have to calculate the moles of and
Molar mass of = 18 g/mol
and,
Molar mass of = 106 g/mol
Now we have to calculate the ratio of and
The formula of compound is,
The value of 'x' is, 2
So, the formula of compound is,
Thus, the integer 'x' in the hydrate is, 2