First slide

Hydrogen Peroxide

Question

The volume of oxygen liberated at STP by decomposition of one L hydrogen peroxide solution with a strength of 17g per litre ?

Easy

Solution

2H₂O₂ → 2H₂O + O₂
$2 \times 34gr$ --------- 22.4 Lit
17gr -------------- ??
$\large \frac{17 \times 22.4}{2 \times 34} = \frac{22.4}{4} = 5.6 Lit$
$\large \therefore$ 5.6Lit of O₂ liberated at STP from 17gr of H₂O₂ solution.

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