A solution is made by mixing 200 ml of 0.1 M - FeSO₄, 200 ml of 0.1 M - KMnO₄ and 600 ml of 1 M - HClO₄. A reaction occurs in which Fe²⁺ and MnO₄⁻ convert to Fe³⁺ and Mn²⁺. If the molarity of H⁺ ion i

Question

A solution is made by mixing 200 ml of 0.1 M - FeSO₄, 200 ml of 0.1 M - KMnO₄ and 600 ml of 1 M - HClO₄. A reaction occurs in which Fe²⁺ and MnO₄⁻ convert to Fe³⁺ and Mn²⁺. If the molarity of H⁺ ion in the final solution is 'x' M, then the value of 1000x is

TestHub · Accepted Answer

MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O. Fe²⁺ = 200×0.1 = 20 mmol (limiting); MnO₄⁻ used = 20/5 = 4 mmol; H⁺ consumed = 8×4 = 32 mmol. H⁺ supplied = 600×1 = 600 mmol; left = 568 mmol in total volume 1000 ml, so x = 0.568 and 1000x = 0568.

Chemistry - Redox Reactions Question with Solution | TestHub

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