Question

The volume strength of $1N$ $H_2{O}_2$ solution is:

• A. $11.2V$
• B. $22.4V$
• C. $1V$
• D. $5.6V$

Answer 1

The correct option is D $5.6V$

$1N$ means $1g$ equivalent weight in $1L$ solution.

$N=\frac{weight}{eq.wt}$ (eq. wt for hydrogen peroxide $=17g$)

Therefore, $1=\frac{wt}{17}$ or $wt=1\times 17=17g$

Now, from the reaction, we know that $68g$ of $H_2{O}_2$ gives $22.4L$ of Oxygen.

Therefore, $17g$ of hydrogen peroxide gives $\frac{22.4\times 17}{68}=5.6L$.

Thus, the volume strength is $5.6L$ because volume strength is the volume of oxygen at STP given by one volume sample of hydrogen peroxide on heating.