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An MnO2(s) /Mn2+(aq) electrode in which the pH is 10.19 is prepared. Find the [Mn2+] necessary...

An MnO2(s) /Mn2+(aq) electrode in which the pH is 10.19 is prepared.

Find the [Mn2+] necessary to lower the potential of the half-cell to 0.00 V (at 25 ?C).

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