Physical ChemistryDifficulty: โ˜…โ˜…โ˜…โ˜†โ˜†

Electrochemistry: Galvanic Cells and Nernst Equation

A galvanic cell consists of a Zn electrode in 0.10 M ZnSO4 and a Cu electrode in 0.010 M CuSO4 at 25ยฐC. (a) Write the cell notation and calculate the standard cell potential (Eยฐcell). (b) Use the Nernst equation to calculate the actual cell potential. (c) Calculate ฮ”G for the cell reaction. (d) What happens to the cell potential as the cell discharges? (e) At what concentration ratio [Zn2+]/[Cu2+] does the cell potential reach zero?

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Tags

electrochemistryNernst equationgalvanic cellthermodynamics

Target Audience

Undergraduate

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