An aqueous LaI3 solution is electrolyzed under 1 bar pressure using platinum electrodes.(a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below.Standard Reduction Potentials (Volts) at 25 °CI2(s) + 2 e- 2 I-(aq)0.535O2(g) + 4 H3O+(aq) + 4 e- 6 H2O(l)1.2292 H2O(l) + 2 e- H2(g) + 2 OH-(aq)-0.828La3+(aq) + 3 e- La(s)-2.370Half-reaction at anode: + + + + Half-reaction at cathode: + + + + (b) What is the expected decomposition potential? _______V

• In the given table, there is reduction potentials are given along with the radox species of…

Answered: An aqueous LaI3 solution is…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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An aqueous LaI₃ solution is electrolyzed under 1 bar pressure using platinum electrodes.

(a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below.

Standard Reduction Potentials (Volts) at 25 °C
I₂(s) + 2 e^- 2 I^-(aq)	0.535
O₂(g) + 4 H₃O⁺(aq) + 4 e^- 6 H₂O(l)	1.229
2 H₂O(l) + 2 e^- H₂(g) + 2 OH^-(aq)	-0.828
La³⁺(aq) + 3 e^- La(s)	-2.370

Half-reaction at anode:

Half-reaction at cathode:

(b) What is the expected decomposition potential? _______V

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