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 $\mathrm{STP}=22.7 \mathrm{~L}$
Answer (integer)
150
Solution
<p>$\mathrm{H_2O_2\longrightarrow H_2O+\frac{1}{2}O_2}$</p>
<p>$\frac{50}{22.7}$</p>
<p>$\therefore$ Moles of $\mathrm{H_2O_2}$ in solution $=\frac{50}{22.7}\times2$</p>
<p>$\therefore$ Strength $=\frac{\frac{50\times2}{22.7}\times34}{1}=149.78\approx150$</p>
About this question
Subject: Chemistry · Chapter: Some Basic Concepts of Chemistry · Topic: Mole Concept
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