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Question

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


Your Answer
A
10.2g
Correct Answer
B
102 g
Your Answer
C
11.3 g
Your Answer
D
68 g

Solution

The correct option is D 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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