Question

Percentage of water of crystallization in H2C2O4 •2H2O​

Answer 1

Answer:

0.12347 or 2.0876544679

Answer 2

Given:

Hydrated compound is $H_{2}C_{2}O_{4} .2H_{2}O$

To Find:

Percentage of water of crystallization in  $H_{2}C_{2}O_{4} .2H_{2}O$

Solution:

Molar mass of  $H_{2}C_{2}O_{4} .2H_{2}O$ = 126.08 $gmol^{-1}$

Molar mass of $2H_{2}O$                 = 36.04 $gmol^{-1}$

Percentage of water of crystallization in $H_{2}C_{2}O_{4} .2H_{2}O$ is the ration between molar mass of water with total mass of hydrated compound multiplied by 100

% of water of crystallization = $\dfrac{36.04}{126.08}$

                                              = 0.2859 × 100

                                              =  28.59%

Anhydrous compound can be formed by heating the hydrated compound.

Anhydrous compound is the compound without water.