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Redox Titrations

Redox titrations can be used to determine the concentration of a reagent. Fe2+ and C2O42- are reducing agents whilst MnO4- is an oxidising agent.The titration of Fe2+ with MnO4-:MnO4-(aq) + 8H+ + 5Fe2+(aq) → Mn2+(aq) + 4H2O (l) + 5Fe3+(aq)Titration of C2O42- with MnO4-:2MnO4-(aq) + 16H+(aq) + 5C2O42-(aq) → 2Mn2+(aq) + 8H2O + 10CO2(g)

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Specification: OCR Chemistry A (H432), A-level, 5.3.1 Transition elements. Topic: Transition Metals.

Key terms in this lesson

oxidation
The loss of electrons by an atom, ion or molecule, or an increase in oxidation number.
reduction
The gain of electrons by an atom, ion or molecule, or a decrease in oxidation number.

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