In many residential water systems, the aqueous Fe³⁺ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe³⁺ to Fe²⁺ and then titrating with MnO₄^- in acidic solution.

Fe²⁺(aq) + MnO₄^-(aq) ? Mn²⁺(aq) + Fe³⁺(aq)

Balance the skeleton reaction of the titration step. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)

Question

In many residential water systems, the aqueous Fe³⁺ concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the Fe³⁺ to Fe²⁺ and then titrating with MnO₄^- in acidic solution.

Fe²⁺(aq) + MnO₄^-(aq) ? Mn²⁺(aq) + Fe³⁺(aq)

Balance the skeleton reaction of the titration step. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.)

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