Electrochemistry

Unit 1 and Review of Redox reactions

1. Use the half-reaction method to balance oxidation-reduction reactions.

2. Define key electrochemical terms: galvanic cell, anode, cathode and salt bridge.

3. Describe the conditions used to calculate the standard reduction potential for a reaction.

4. Explain the importance of the standard hydrogen electrode.

5. Determine the standard cell potential and the spontaneous cell reaction for a given chemical combination.

Unit 2

6. Calculate Eºcell of a reaction given the value of ΔG and K and interconvert between these three.

7. Use the Nernst equation to calculate the Ecell of a cell under non-state conditions.

Unit 3

8. Define concentration cell.

9. Distinguish between different types of batteries including: dry cell, alkaline, lead storage, lithium and fuel cells.

10. Describe in your own words the construction and operation of an electrolytic cell.

11. Calculate the Eº of a given electrolytic cell.

12. Cite examples of electrolytic cells.

13. Explain overvoltage.

14. Describe in your own words the basis of corrosion and galvanization.