Question

What is the % of $H_{2}O$ in $Fe(CNS{)}_3.3H_{2}O$

• A. 45
• B. 30
• C. 19
• D. 25

Answer 1

The correct option is C 19

In $Fe(CNS{)}_3.3H_{2}O$
% of $H_{2}O=\frac{3\times 18}{284}\times 100=19\%$