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A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25 ∘C. The...

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Chemistry

A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+half-cell at 25 ∘C. The initial concentrations of Pb2+ and Cu2+ are5.20×10−2M and 1.50 M,respectively.

A) What is the cell potential when the concentration of Cu2+ hasfallen to 0.250 M ?

B) What are the concentrations of Pb2+ and Cu2+ when the cellpotential falls to 0.36 V?

Answer & Explanation Solved by verified expert
4.4 Ratings (898 Votes)
Cu2 2e Cu E0 034 V Pb2 2e Pb E0 013 V The overall cell reaction will be as Pb Pb2 2e E0 013 V reversed Cu2 2e Cu E0 034 V Pb Cu2 Pb2 Cu E0cell 047 V If Cu2 falls then Pb2 increases since    See Answer
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