Question

Strength of ${H_2}{O_2}$ is $15.18g{L^{ - 1}}$, then it is equal to
$A.1$ Volume $B.10$ Volume $C.5$ Volume $D.7$ Volume

Answer 1

On heating, the volume of oxygen liberated at STP from one volume sample of hydrogen peroxide is referred to as volume strength. It's the amount of oxygen gas released from a volume of ${H_2}{O_2}$ solution.The volume of oxygen emitted at STP is used to calculate the concentration of hydrogen peroxide in solution = volume strength/percentage strength.

Complete answer:
The Strength of ${H_2}{O_2}$​ is $15.18g/L$.
$2{H_2}{O_2}$ $\to$ $2{H_2}O$ $+$ ${O_2}$.
$2(2 + 32)$ $=$ $68g$ and $22.4l$of ${O_2}$.
$68g$ of ${H_2}{O_2}$ liberates $22.4l$ of ${O_2}$.
and $15.18g$ of ${H_2}{O_2}$liberates $=$ $22.4 \times 15.18/68$ $= 5l$.
In another Way, Volume strength can be calculated by
Volume Strength = $5.6 \times strength$ $in$ $g{L^{ - 1}}$
$Eq.wt$Of ${H_2}{O_2}$
$=$ $5.6 \times 15.18$
$=17$
Volume Strength of ${H_2}{O_2}$ $=$ $5$ Volumes.
So, the correct answer is $C.$ $5$ Volume.

Additional information:
Hydrogen peroxide decomposes slowly to generate water and oxygen gas.
${H_2}{O_2}$ $\to$ ${H_2}O$ $+$ $0.5{O_2}$ .
We can now see that, because it's a solution, it's often easier to express the concentration in terms of a measured quantity, in this case the volume (we have graduated glasses for volume but not for mass).
So, here's the definition of hydrogen peroxide volume strength:
The volume strength of a hydrogen peroxide solution is the amount of oxygen gas released per volume of solution. By volume, we mean liters of oxygen will be released by $1L$ solution.
Let us now calculate strength for $1M$ (i.e.$1mol$in $1L$ solution).
Note that $1$ $mol$ of ${H_2}{O_2}$ will release $11.2L$ oxygen gas.
Thus, $11.2L$ oxygen gas $\to$ $1$ $mol$ hydrogen peroxide.
But $1$ $mol$ $\to$ $1L$ solution
So, $11.2$ $L$ oxygen $\to$ $1L$ solution.
So $1$ volume of solution releases $11.2$ volume of oxygen gas.
Hence, volume strength $=$ $11.2$ Only.

Note:
In some waste-water treatment methods, hydrogen peroxide is utilized to eliminate organic contaminants. The Fenton reaction is used in advanced oxidation processes. Hydrogen peroxide has long been used to treat wounds, mainly due to its low cost and quick availability when compared to other antiseptics. Because it kills freshly created skin cells, it is now suspected to hinder healing and cause scarring.