Question

Write the net cell equation for the electrochemical cell. Phases are optional. Do not include the...

Write the net cell equation for the electrochemical cell. Phases are optional. Do not include the concentrations.

Cu(s)∣∣Cu2+(aq,0.0155 M)∥∥Ag+(aq,3.50 M)∣∣Ag(s)Cu(s)|Cu2+(aq,0.0155 M)‖Ag+(aq,3.50 M)|Ag(s)

net cell equation:

Calculate E∘cellEcell° and EcellEcell at 25 °C25 °C, using standard potentials as needed.

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Homework Answers

Answer #1

oxidation : Cu (s)   ----------> Cu2+ (aq) + 2e-

Reduction : Ag+ (aq) + e-   ----------> Ag (s)

______________________________________________

overall : Cu (s) + 2 Ag+ (aq) ---------> Cu2+ (aq) + 2 Ag (s)

Eocell = Eored - Eooxidation

           = 0.799 - 0.337

Eocell = 0.462 V

Ecell = Eo - 0.05916 / 2 log [Cu2+ / Ag+^2]

       = 0.462 - 0.05916 / 2 log [0.0155 / 3.50^2 ]

Ecell = 0.548 V

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