A galvanic cell is constructed in which the overall reaction is 2 MnO4 (aq) + 16 H30+ (aq) + 10 I (aq) → 2 Mn²+ (aq) + 24 H₂O (1) + 5 1₂ (s) (a) Calculate AE° for this cell. Use the data given below. AE° = V (b) At pH 0, with [ MnO4 ] = 1.75 M and [I] = 0.361 M, the cell voltage is found to equal 1.010 V. Calculate the concentration of Mn2+ (aq) in the cell. (Enter your answer to 3 significant figures.) Concentration= M Standard Reduction Potentials at 25°C Half-reaction MnO4 + 8 H30++ 5e 1₂+2 e Mn2+ + 12 H₂O 2r E° (volts) 1.507 0.535

A galvanic cell is constructed in which the overall reaction is 2 MnO4 (aq) + 16 H30+ (aq) + 10 I (aq) → 2 Mn²+ (aq) + 24 H₂O (1) + 5 1₂ (s) (a) Calculate AE° for this cell. Use the data given below. AE° = V (b) At pH 0, with [ MnO4 ] = 1.75 M and [I] = 0.361 M, the cell voltage is found to equal 1.010 V. Calculate the concentration of Mn2+ (aq) in the cell. (Enter your answer to 3 significant figures.) Concentration= M Standard Reduction Potentials at 25°C Half-reaction MnO4 + 8 H30++ 5e 1₂+2 e Mn2+ + 12 H₂O 2r E° (volts) 1.507 0.535

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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Concept explainers

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.

Question

Ff.39.

A galvanic cell is constructed in which the overall reaction is
2 MnO4 (aq) + 16 H30+ (aq) + 10 I (aq) → 2 Mn²+ (aq) + 24 H₂O (!) + 5 1₂ (s)
(a) Calculate AE° for this cell. Use the data given below.
AE° =
V
(b) At pH 0, with [ MnO4 ] = 1.75 M and [I] = 0.361 M, the cell voltage is found to equal 1.010 V. Calculate the concentration of Mn2+ (aq) in the cell. (Enter your answer
to 3 significant figures.)
Concentration=
M
Standard Reduction Potentials at 25°C
Half-reaction
MnO4 + 8 H3O+ + 5 e
1₂+2 e
Mn2+ + 12 H₂O
21
E° (volts)
1.507
0.535

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