MOHC.docx - Mass | Oxygen | Hydrogen | Charge 1 Permanganate ions oxidize ferrous ion to ferric ion and in turn is reduced to manganese(II ions in

MOHC.docx - Mass | Oxygen | Hydrogen | Charge 1...

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Mass | Oxygen | Hydrogen | Charge 1. Permanganate ions oxidize ferrous ion to ferric ion and in turn is reduced to manganese (II) ions in acidic solution MnO 4 - + Fe 2+ → Mn +2 + Fe 3+ MnO 4 - → Mn +2 Fe 2+ → Fe 3+ +8H + +4H 2 O +e - +5e - MnO 4 - + 8H + + 5e - → Mn +2 + 4H 2 O 5(Fe +2 → Fe +3 + e - ) MnO 4 - + 8H + + 5e - + 5Fe +2 → 5Fe 3+ + 5e - + Mn +2 + 4H 2 O MnO 4 - + 8H + + 5Fe +2 → 5Fe 3+ + Mn +2 + 4H 2 O 2. In basic solution, hypochlorite ion oxidizes chromite ions to chromate ions, and is reduced to chloride ions ClO - + CrO 2 - → CrO 4 2- + Cl - ClO - → Cl - CrO 2 - → CrO 4 2- +H 2 O +2OH - +4OH - +2H 2 O +2e - +3e - 3(ClO - + H 2 O + 2e
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