The following oxidation and reduction half-reactions are possible for the electrolysis of potassium iodide solution. The solution contains water molecules, potassium ions (K'), and iodide ions (-). 2H:O(1) → O2(g) + 4H (aq) + 4e- 2H;Om + 2e- → Haw + 20H",w) 21m) → laso + 20- K'uu + e+ K 1. What product(s) was (were) formed at the anode in the electrolysis of potassium iodide solution? Explain citing specific evidence from your observations. 2. What product(s) was (were) formed at the cathode in the electrolysis of potassium iodide solution? Explain based on your observations. 3. Write the balance half-reaction that occurred at the anode. 4. Write the balanced half-reaction that occurred at the cathode. 5. Write the balanced chemical equation for the overall redox reaction in the electrolysis of aqueous potassium iodide. Hint: Remember to balance the electrons!

The following oxidation and reduction half-reactions are possible for the electrolysis of potassium iodide solution. The solution contains water molecules, potassium ions (K'), and iodide ions (-). 2H:O(1) → O2(g) + 4H (aq) + 4e- 2H;Om + 2e- → Haw + 20H",w) 21m) → laso + 20- K'uu + e+ K 1. What product(s) was (were) formed at the anode in the electrolysis of potassium iodide solution? Explain citing specific evidence from your observations. 2. What product(s) was (were) formed at the cathode in the electrolysis of potassium iodide solution? Explain based on your observations. 3. Write the balance half-reaction that occurred at the anode. 4. Write the balanced half-reaction that occurred at the cathode. 5. Write the balanced chemical equation for the overall redox reaction in the electrolysis of aqueous potassium iodide. Hint: Remember to balance the electrons!

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

For the KI solution,
The following oxidation and reduction half-reactions are possible for the electrolysis of potassium iodide
solution. The solution contains water molecules, potassium ions (K'), and iodide ions (-).
2H:0(1) → O2(g) + 4H (aq) + 4e-
2H2Om + 2e- → Haiw) + 20H"(u4)
21a) → laso + 2e-
1. What product(s) was (were) formed at the anode in the electrolysis of potassium iodide solution? Explain
citing specific evidence from your observations.
2. What product(s) was (were) formed at the cathode in the electrolysis of potassium iodide solution?
Explain based on your observations.
3. Write the balance half-reaction that occurred at the anode.
4. Write the balanced half-reaction that occurred at the cathode.
5. Write the balanced chemical equation for the overall redox reaction in the electrolysis of aqueous
potassium iodide. Hint: Remember to balance the electrons!
In addition, answer the above tive questions for the electrolysis of sodium chloride and electrolysis
of copper (II) bromide trials.

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