Question

What is the `H^+` concentration for an aqueous solution with pOH = 3.05 at 25°C?

Answer 1

If pOH is 3.05, pH is 10.95 or `[H^+]=1.122*10^-11` mol/L

Explanation:

`pH=-log(H^+)`

Now, what is `H^+` if your pH is 10.95 (since pH+pOH=14, your pH=10.95).

`(H^+)=10^(-10.95)`

`(H^+)=1.122*10^-11`

This is your hydrogen ion concentration: `[H^+]=0.00000000001122` mol/L