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pH the Power of H

For a given s...

Question

For a given solution pH=6.9 at 60^.c where K_w=10^-12.The solution is

A)Acidic. B)Basic. C)Neutral. D)Unpredictable

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Solution

We have ionic product of water kw=[H+][OH-]
given kw = 10^-12
then for neutral scale in this case
[H+] = [OH-] = 10^-6
or pH= -log[H+] = 6
In question pH=6.9
so basic

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