QJEEM23Che319: JEE Main 2023 Chemistry - Class 11 JEEM23Che319 Solution: The strength of 50 volume solution of hydrogen peroxide is…

Question

Verified Solution • 2025–26 Session moderate

The strength of 50 volume solution of hydrogen peroxide is ______ $\mathrm{g} / \mathrm{L}$ (Nearest integer).

Given:

Molar mass of

\mathrm{H}_{2} \mathrm{O}_{2}

is

34 \mathrm{~g} \mathrm{~mol}^{-1}

Molar volume of gas at

\mathrm{STP}=22.7 \mathrm{~L}

Accepted Answer

$\mathrm{H_2O_2\longrightarrow H_2O+\frac{1}{2}O_2}$

$\frac{50}{22.7}$

$\therefore$ Moles of $\mathrm{H_2O_2}$ in solution $=\frac{50}{22.7}\times2$

$\therefore$ Strength $=\frac{\frac{50\times2}{22.7}\times34}{1}=149.78\approx150$

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