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Empirical and Molecular Formula

The number of...

Question

The number of moles of KMnO4 required to oxidise one mole of KI in the presence of sulphuric acid

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Solution

MnO₄^-+2I^- +8 H⁺→Mn²⁺+I₂+4H₂O
1 mole of KMnO₄ is required to oxidise 2 moles of I^-(KI). To oxidise 1 mole of KI 0.5 mole of KMnO₄ is required.

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