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Question

What is the mass of hydrogen peroxide in 1 L of 3M solution?

A
10.2g
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B
102 g
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C
11.3 g
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D
68 g
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Solution

The correct option is B 102 g
Molar mass of H2O2=34, When 34 g of it are dissolved in 1L , molarity is 1
Hence mass of H2O2 in One Litre of 3M=34×3 = 102 g

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