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Equal volums of solutions pH values 1,3,...

Equal volums of solutions `pH` values `1,3,5,6` are mixed with each other . The pH of resultant solution is nearly

A

`1.3`

B

`2.7`

C

`1.6`

D

`3.6`

Text Solution

Verified by Experts

The correct Answer is:
C
`[H^(+)] = (10^(-1) v + 10^(-3)v + 10^(-5)v + 10^(-6))/(4v) = (10^(-1)v)/(4v)`
`= 0.25 xx 10^(-1)`
`= 2.5 xx 10^(-2)`
`P^(H) = -"log" 2.5 xx 10^(-2)`
`= 2 - "log" 2.5`
`P^(H) = 1.6`
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