None The emf of the cell reactionZn(s) + Cu²+(aq)—Zn2+(aq) + Cu(s)is 1.1 V. Calculate the free energy change for the reaction.If the enthalpy of the reaction is -216.7 kJ mol¹, calculatethe entropy change for the reaction.

1. **Calculate ( ΔG ) (Free Energy Change): ΔG = -nFE Δ G = -(2 x 96,485x1.1 = -192,970 1V=1J/C…

Answered: The emf of the cell reaction Zn(s) +…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter18: Electrochemistry

Section: Chapter Questions

Problem 18.96QE

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The standard potential, E, for the reaction of Zn(s) and Cl2(g) is +2.12 V. What is the standard free energy change, rG, for the reaction?
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a Calculate G for the following cell reaction: Tl(s)Tl+(aq)Pb2+(aq)Pb(s) The Gf for Tl+(aq) is 32.4 kJ/mol. b From G, calculate the standard cell potential for the cell reaction and from this, determine the standard potential for Tl2+(aq)+eTl(s).
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An aqueous solution of an unknown salt of gold is electrolyzed by a current of 2.75 amps for 3.39 hours. The electroplating is carried out with an efficiency of 93.0%, resulting in a deposit of 21.221 g of gold. a How many faradays are required to deposit the gold? b What is the charge on the gold ions (based on your calculations)?
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The emf of the cell reaction Zn(s) + Cu²+(aq)—Zn2+(aq) + Cu(s) is 1.1 V. Calculate the free energy change for the reaction. If the enthalpy of the reaction is -216.7 kJ mol¹, calculate the entropy change for the reaction.