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Hydrogen Peroxide

The volume st...

Question

The volume strength of $15 %$ (w/v) solution of $H_{2} O_{2}$ is :

50

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4.94

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494

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0.494

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Solution

The correct option is A $50$
The solution is $15 % (w / v)$ . It means $100 m l$ of solution contains $15$ g of hydrogen peroxide.
The concentration in g/L is $\frac{15}{100} \times 1000 = 150 g / L$ .
The relationship between the concentration in g/L and the volume strength $x$ is
Conc. in g/L $= \frac{680 \times (x)}{224} g / L$
Thus, $150 = \frac{680 \times (x)}{224}$
$x = 50$ . Thus, the volume strength of solution is $50$ .

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