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Given the following standard electrode potentials: A: I2(aq) + 2e-   ⇌  2I-(aq), E = +0.54V B: Fe3+(aq)  + e-   ⇌  Fe2+(aq)   E = +0.77V C: Zn2+(aq) +   2e-   ⇌  Zn(s)     E = -0.76V D: Cu2+(aq) + 2e-     ⇌   Cu(s)    E = +0.34V E: Cr2O72-(aq)  + 14H+(aq) + 6e- ⇌  2Cr3+(aq)  + 7H2O(l)    E = +1.33V If all the species are contained in the redox A- E, which of them is the most powerful oxidizing agent? reducing agent? Name two reference electrodes that can be used to measure the standard electrode potentials of the systems.  What would be observed when Iron(III) chloride solution is added to potassium Iodide solution?

Given the following standard electrode potentials: A: I2(aq) + 2e-   ⇌  2I-(aq), E = +0.54V B: Fe3+(aq)  + e-   ⇌  Fe2+(aq)   E = +0.77V C: Zn2+(aq) +   2e-   ⇌  Zn(s)     E = -0.76V D: Cu2+(aq) + 2e-     ⇌   Cu(s)    E = +0.34V E: Cr2O72-(aq)  + 14H+(aq) + 6e- ⇌  2Cr3+(aq)  + 7H2O(l)    E = +1.33V If all the species are contained in the redox A- E, which of them is the most powerful oxidizing agent? reducing agent? Name two reference electrodes that can be used to measure the standard electrode potentials of the systems.  What would be observed when Iron(III) chloride solution is added to potassium Iodide solution?

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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Given the following standard electrode potentials:
A: I2(aq) + 2e-   ⇌  2I-(aq), E = +0.54V

B: Fe3+(aq)  + e-   ⇌  Fe2+(aq)   E = +0.77V

C: Zn2+(aq) +   2e-   ⇌  Zn(s)     E = -0.76V

D: Cu2+(aq) + 2e-     ⇌   Cu(s)    E = +0.34V

E: Cr2O72-(aq)  + 14H+(aq) + 6e- ⇌  2Cr3+(aq)  + 7H2O(l)    E = +1.33V

If all the species are contained in the redox A- E, which of them is the most powerful

  • oxidizing agent?
  • reducing agent?

Name two reference electrodes that can be used to measure the standard electrode potentials of the systems. 

What would be observed when Iron(III) chloride solution is added to potassium Iodide solution?

Write a cell diagram and calculate the e.m.f of the voltaic cell formed between B and E. 

 

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