Latimer emf diagram for manganese (Mn) in acid solution

00:15 Introduction, Latimer diagram
03:24 Reduction of permanganate (MnO₄ ⁻) to manganate (MnO₄ ⁻²)
04:14 Reduction of manganate (MnO₄ ⁻²)
05:02 Reduction of hypomanganate (MnO₄ ⁻³
07:16 Reduction of manganese dioxide (MnO₂)
08:55 Reduction of Mn⁺³
09:28 Reduction of Mn⁺²
10:22 Reduction of MnO₄ ⁻ to Mn⁺²
12:50 Reduction of MnO₄ ⁻ to MnO₂
14:13 Disproportionation of hypomanganate (MnO₄ ⁻³)
16:30 Disproportionation of Mn⁺³
17:52 Latimer diagram

The balancing of each half-cell reduction reaction in the Latimer diagram for manganese in acid solution is demonstrated. There are two manganese ions that undergo disproportionation (dismutation) in acid solutions; the standard potential for each of these reactions is derived.

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