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Standard Reduction Potentials (Volts) at 25 °C Cl2 (g) + 2 e-  2 Cl- (aq) 1.360 O2(g) + 4 H3O+(aq) + 4 e-  6 H2O(l)  1.229 2 H2O(l) + 2 e-  H2(g) + 2 OH-(aq) -0.828 Sc3+ (aq) + 3 e-  Sc (s) -2.080   A 0.127 M neutral aqueous ScCl3 solution is electrolyzed under 1 atm pressure using platinum electrodes. (a) Write the half-reactions expected to occur, taking into account the effect of the non-standard conditions on the electrode potentials. Half-reaction at anode:     +       +              +       +     Half-reaction at cathode:     +       +              +       +     (b) What is the expected decomposition potential? _________  V

Standard Reduction Potentials (Volts) at 25 °C Cl2 (g) + 2 e-  2 Cl- (aq) 1.360 O2(g) + 4 H3O+(aq) + 4 e-  6 H2O(l)  1.229 2 H2O(l) + 2 e-  H2(g) + 2 OH-(aq) -0.828 Sc3+ (aq) + 3 e-  Sc (s) -2.080   A 0.127 M neutral aqueous ScCl3 solution is electrolyzed under 1 atm pressure using platinum electrodes. (a) Write the half-reactions expected to occur, taking into account the effect of the non-standard conditions on the electrode potentials. Half-reaction at anode:     +       +              +       +     Half-reaction at cathode:     +       +              +       +     (b) What is the expected decomposition potential? _________  V

Chemistry
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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Standard Reduction Potentials (Volts) at 25 °C
Cl2 (g) + 2 e-  2 Cl- (aq) 1.360
O2(g) + 4 H3O+(aq) + 4 e-  6 H2O(l)  1.229
2 H2O(l) + 2 e-  H2(g) + 2 OH-(aq) -0.828
Sc3+ (aq) + 3 e-  Sc (s) -2.080
 



A 0.127 M neutral aqueous ScCl3 solution is electrolyzed under 1 atm pressure using platinum electrodes.

(a) Write the half-reactions expected to occur, taking into account the effect of the non-standard conditions on the electrode potentials.

Half-reaction at anode:

    +       +              +       +    



Half-reaction at cathode:

    +       +              +       +    



(b) What is the expected decomposition potential? _________  V

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