First slide

Hydrogen Peroxide

Question

The weight of H₂O₂ present in 10 ml 80Vol. H₂O₂ solution is

Easy

Solution

80 volume strenght of H₂O₂ solution means,
$\large 1\;ml\;of\;{H_2}{O_2}\;solution\;\xrightarrow{{gives}}\;80ml\;of\;{O_2}$
10 ml of H₂O₂ solution → ??
$\large \frac{10\times 80}{1}$ = 800ml of O₂ liberated from 10ml of 80 vol.strength of H₂O₂ solution.
2H₂O₂ → 2H₂ O+ O₂
2 x 34 gr of H₂O₂ solution → 22.4 lit (or) 22400 ml
?? → 800 ml
$\large \frac{800\times 2\times 34}{22400}$ = 2.42 gr of H₂O₂ solution
$\large \therefore$ The weight of H₂O₂ present in 10 ml 80 vol.strength of H₂O₂ solution is 2.42gr

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