1.

HClO is a weak acid. The concentration of H^(+) ions in 0.1 M solution of HClO (K_(a) = 5 xx 10^(-8)) will be equal to

Answer»

`7.07 xx 10^(-5) m`
`5 xx 10^(-9) m`
`5 xx 10^(-7) m`
`7 xx 10^(-4) m`

Solution :`[H^(+)]^(2) = C.alpha = 0.1 xx 5 xx 10^(-8)`
`H^(+) = sqrt(5 xx 10^(-9)) = 7.07 xx 10^(-5) M`.


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