A solution contains 0.351 M Ce 3+ , 3.51?10 ?4 M Ce 4+ , 3.51?10 ?4 M Mn 2+ , 0.

Question

A solution contains 0.351 M Ce3+, 3.51?10?4M Ce4+, 3.51?10?4M Mn2+, 0.351 M MnO4?, and 3.51 M HClO4. (The Faraday's constant is 9.649?104Coulombs/mole.)

(a) Write a balanced net reaction that can occur between species in this solution. (Use the lowest possible coefficients. Omit states-of-matter.)

(b) Calculate ?G? and K for the reaction.

(c) Calculate E for the conditions given.

(d) Calculate ?G for the conditions given.

(e) At what pH would the given concentrations of Ce4+, Ce3+, Mn2+, and MnO4? be in equilibrium at 298 K?

Explanation / Answer

Ce4+. (aq) + e

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