1.

Equal volumes of three acid solution of pH 3,4 and 5 are mixed in a vessel. What will be the H^(+) ion concentration in the mixture

Answer»

`3.7 xx 10^(-3) M`
`1.11 xx 10^(-3) M`
`1.11 xx 10^(-4) M`
`3.7 xx 10^(-4) M`

Solution :`[H^(+)]_(MIX) = (10^(-3)x + 10^(-4)x + 10^(-5)x)/(3X)`
`= (1)/(3)(10^(-3) + 10^(-4) + 10^(-5)) = 37 xx 10^(-5) = 3.7 xx 10^(-4)`.


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