In many residential water systems, the aqueous Fe3+
Chapter 22, Problem 11P(choose chapter or problem)
In many residential water systems, the aqueous \(\mathrm{Fe}^{3+}\) concentration is high enough to stain sinks and turn drinking water light brown. The iron content is analyzed by first reducing the \(\mathrm{Fe}^{3+}\) to \(\mathrm{Fe}^{2+}\) and then titrating with \(\mathrm{MnO}_{4}{ }^{-}\) in acidic solution. Balance the skeleton reaction of the titration step:
\(\mathrm{Fe}^{2+}(a q)+\mathrm{MnO}_{4}{ }^{-}(a q) \longrightarrow \mathrm{Mn}^{2+}(a q)+\mathrm{Fe}^{3+}(a q)\)
Equation Transcription:
Text Transcription:
Fe^3+
Fe^2+
MnO_4^ −
Fe^2+(aq)+MnO_4^ −(aq) longrightarrow Mn^2+(aq)+Fe^3+(aq)
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