Question

In the reaction of potassium permanganate and iron salt in acidic medium, how many moles of manganese reacted with iron?
2 moles of Mn with 1 mole of Fe
1 mole of Mn with 5 moles of Fe
1 mole of Mn reacts with 1 mole of Fe
5 moles of Mn reacts with 1 mole

Answer 1

Answer on Question # 51883 Chemistry Other

In the reaction of potassium permanganate and iron salt in acidic medium, how many moles of manganese reacted with iron?

- 2 moles of Mn with 1 mole of Fe

- 1 mole of Mn with 5 moles of Fe

- 1 mole of Mn reacts with 1 mole of Fe

- 5 moles of Mn reacts with 1 mole

Solution

1. $\mathrm{MnO}_{4}^{-} + 8\mathrm{H}^{+} + 5\mathrm{e} = \mathrm{Mn}^{2+} + 4\mathrm{H}_{2}\mathrm{O}$

5. $\mathrm{Fe}^{2+} - 1\mathrm{e} = \mathrm{Fe}^{3+}$

Answer: 1 mole of Mn with 5 moles of Fe

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