Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is ΔG° at 25 °C for the reaction involved?1. \( \text{Cr}_2\text{O}_7^{2-} + 14\text{H}^+ + 6\text{e}^- \leftrightarrow 2\text{Cr}^{3+} + 7\text{H}_2\text{O} \) \( E^\circ = 1.33 \, \text{V} \)2. \( \text{H}_2\text{O}_2 + 2\text{H}^+ + 2\text{e}^- \leftrightarrow 2\text{H}_2\text{O} \) \( E^\circ = 1.78 \, \text{V} \)Choices:- A. 260,550 kJ- B. -87 kJ- C. -2.70 kJ- D. -261 kJ- E. -260,550 kJ

The reactions are – Oxidation half cell-2Cr3+ + 7H2O ↔Cr2O7 +14H++ 6e-.....E∘red.=1.33 VReduction…

Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is AG° at 25 °C for the reaction involved? Cr2072- + 14H* + 6e" <> 2Cr3+ + 7H20 E° - 1.33 V H202 + 2H* + 2e <> 2 H2O E°-1.78 V O A. 260,550 k) O B. -87 k) C.-2.70 k) O D.-261 k) O E. -260,550 k)

Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is AG° at 25 °C for the reaction involved? Cr2072- + 14H* + 6e" <> 2Cr3+ + 7H20 E° - 1.33 V H202 + 2H* + 2e <> 2 H2O E°-1.78 V O A. 260,550 k) O B. -87 k) C.-2.70 k) O D.-261 k) O E. -260,550 k)

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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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

Consider a galvanic cell built on the following half-reactions with their standard reduction potentials shown. What is ΔG° at 25 °C for the reaction involved?

1. \( \text{Cr}_2\text{O}_7^{2-} + 14\text{H}^+ + 6\text{e}^- \leftrightarrow 2\text{Cr}^{3+} + 7\text{H}_2\text{O} \) \( E^\circ = 1.33 \, \text{V} \)

2. \( \text{H}_2\text{O}_2 + 2\text{H}^+ + 2\text{e}^- \leftrightarrow 2\text{H}_2\text{O} \) \( E^\circ = 1.78 \, \text{V} \)

Choices:
- A. 260,550 kJ
- B. -87 kJ
- C. -2.70 kJ
- D. -261 kJ
- E. -260,550 kJ

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