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Question

The volume strength of a sample of H2O2 is 8.96 vol. The mass of H2O2 present in 250 ml of this solution is

A
0.4 g
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B
27.2 g
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C
6.8 g
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D
108.8 g
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Solution

The correct option is D 6.8 g
Volume strength H2O2=11.2× Molarity
11.2× Molarity =8.96 M
Molarity =0.8 Molar(M)
Moles of H2O2=0.25×0.8=0.2 moles
Mass of H2O2=34×0.2=6.8 gm

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