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Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. States are not required. If a box is not needed, leave it blank. Standard Reduction Potentials (Volts) at 25 °C Br₂ (1) + 2e →→→ 2 Br* (aq) 1.080 O₂(g) + 4 H3O+(aq) + 4 e¯ →→→ 6 H₂O(1) 2 H₂O(l) +2 e* → H₂(g) + 2 OH-(aq) La³+ (aq) + 3 e→→→→La (s) 1.229 -0.828 -2.370 A 0.117 M neutral aqueous LaBr3 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 potentia Half-reaction at anode:

Use the References to access important values if needed for this question. Enter electrons as e. Use smallest possible integer coefficients. States are not required. If a box is not needed, leave it blank. Standard Reduction Potentials (Volts) at 25 °C Br₂ (1) + 2e →→→ 2 Br* (aq) 1.080 O₂(g) + 4 H3O+(aq) + 4 e¯ →→→ 6 H₂O(1) 2 H₂O(l) +2 e* → H₂(g) + 2 OH-(aq) La³+ (aq) + 3 e→→→→La (s) 1.229 -0.828 -2.370 A 0.117 M neutral aqueous LaBr3 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 potentia Half-reaction at anode:

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
Chapter18: Electrochemistry
Section: Chapter Questions
Problem 133CWP: Consider a galvanic cell based on the following half-reactions: a. What is the expected cell...
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Half-reaction at anode: Half-reaction at cathode: + Use the References to access important values if needed for this question. + Enter electrons as e. Use smallest possible integer coefficients. States are not required. If a box is not needed, leave it blank. Standard Reduction Potentials (Volts) at 25 °C 1.080 Br₂ (1) + 2 e¯ →→→ 2 Br¨ (aq) O₂(g) + 4 H3O+(aq) + 4 e¯ A 0.117 M neutral aqueous LaBr3 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. 2 H₂O(1) + 2 e¨ · H₂(g) + 2 OH-(aq) -0.828 La³+ (aq) + 3 e¯ →→→→La (s) -2.370 + 6 H₂O(1) + (b) What is the expected decomposition potential? 1.229 + + + +
Transcribed Image Text:Half-reaction at anode: Half-reaction at cathode: + Use the References to access important values if needed for this question. + Enter electrons as e. Use smallest possible integer coefficients. States are not required. If a box is not needed, leave it blank. Standard Reduction Potentials (Volts) at 25 °C 1.080 Br₂ (1) + 2 e¯ →→→ 2 Br¨ (aq) O₂(g) + 4 H3O+(aq) + 4 e¯ A 0.117 M neutral aqueous LaBr3 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. 2 H₂O(1) + 2 e¨ · H₂(g) + 2 OH-(aq) -0.828 La³+ (aq) + 3 e¯ →→→→La (s) -2.370 + 6 H₂O(1) + (b) What is the expected decomposition potential? 1.229 + + + +
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