Equal volumes of three acid solutions of...

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

A

`3.7 xx 10^(-3)`M

B

`1.11 xx 10^(-3)`M

C

`1.11 xx 10^(-4)` M

D

`3.7 xx 10^(-4)` M

Verified by Experts

The correct Answer is:

D

`[H^(+)]_(max) = (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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