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[H^(+)] concentration in 0.01 M H2O2 sol...

`[H^(+)]` concentration in 0.01 M `H_2O_2` solution `(K_(a_(1))=3xx10^(-12) and K_(a_2)~~0)` is `xxM`.Fill first two digits of `10^(8)x` as answer.

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The correct Answer is:
20
`[H^+]=sqrt(K_aC_0+K_w)=sqrt(3xx10^(-12)xx10^(-2)+10^(-14))=2xx10^(-7)M=x " " therefore 10^8" " x=20`
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