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An electrochemical cell is based on the following two half-reactions: Ox: Pb(s)?Pb2+(aq, 0.21M )+2e? Red: MnO?4(aq, 1.25M )+4H+(aq, 2.5M...

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Chemistry

An electrochemical cell is based on the following twohalf-reactions:
Ox: Pb(s)?Pb2+(aq, 0.21M )+2e?
Red: MnO?4(aq, 1.25M )+4H+(aq,2.5M )+3e??
MnO2(s)+2H2O(l). Compute the cell potential at 25?C.

Answer & Explanation Solved by verified expert
3.7 Ratings (702 Votes)
Oxidation Pbs Pb2 021M 2e E0Pb2Pb 013 V Reduction MnO4aq 125M 4Haq 25M 3e MnO2s2H2Ol E0MnO4MnO2 170V net reaction 3Pbs    See Answer
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