Question #176220

What Is The Absolute Difference In [H+] Between 2 Aqueous Solutions, One Of PH 2.0 And One Of PH 3.0? What is the [OH-] concentration of the solution of pH 2.0?

Expert's answer

As we know that,

Therefore,

as given P^{H}=2 and P^{H}=3

"2=-log[H^+]\\\\10^{-2}=[H^+]" ...ans

and

"3=-log[H^+]\\\\10^{-3}=[H^+]" .......ans

So absolute difference between 1 and 2 is

"\\boxed{10^{-2}-10^{-3}=0.009}"

Further for concentration of [OH^{-}] of P^{H}= 2

We know that,

"\\boxed{[OH-][H+]=10^{-14}}"

so from this ,

[OH^{-}][10^{-2}]=10^{-14}

[OH^{-}]=10^{-12} ,....answer

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