Questions about Zinc Chloride Reaction

Question

Consider the cell, Zn(s)|ZnCl2(aq, 0.02 mol/kg)|AgCl(s)|Ag(s) at 298K.

(A) Write the net cell reaction and calculate the standard electromotive force.

(B) Write the expression for the reaction quotient in terms of activities and then reduce it to a function of the mean ionic activity coefficient. Next, reduce it to an ideal solution expression.

(C) Estimate the electromotive force for the concentration given.

(D) Use Debye-Huckel theory to determine the mean ionic activity coefficient.

(E) Using the Nernst equation, determine the standard cell potential including the mean ionic activity coefficient.

(F) Calculate ΔG from E.

(G) Compare the answers for parts C and E.

Summary

The question belongs to Chemical Engineering and it is about Zinc chloride cell at 298K. Questions about the net cell reaction, standard electromotive force, expression for reaction quotient, Debye-Huckel theory for ionic activity coefficient, etc have been answered in the solution.

Note: The solution is in handwritten format