Voltaic and Electrolytic Cells
Prelab Assignment
The students are given the diagram shown above. The unknown metal X will randomly be shuffled to be one of the following X = Cu or Mn or Mg or Ca. They would also be shown the following table.
With this information available they would be asked to answer the following questions:
At which reaction will oxidation occur?
A. |
B. |
At which reaction will reduction occur?
A. |
B. |
Which strip of metal acts as the anode?
A. |
B. |
What half-reaction occurs at the anode?
A. |
B. |
C. |
D. |
E. |
Which strip of metal acts as the cathode?
A. |
B. |
What half-reaction occurs at the cathode?
A. |
B. |
C. |
D. |
E. |
Which strip of metal gains mass as the reaction proceeds?
A. |
B. |
In which direction do the electrons flow?
A. |
B. |
Assuming both solutions are 1.0 M in concentration and T = 298 K, what voltage will you read at the multimeter?
A. |
B. |
C. |
D. |
E. |
F. |
Sodium metal is produced by electrolysis of molten NaCl. Answer the following questions for this process.
At which electrode is metallic sodium produced?
A. |
B. |
What is produced at the other electrode?
A. |
B. |
C. |
D. |
E. |
How long would you have to pass a current of x A to produce 85 g of sodium metal?
A. |
B. |
C. |
D. |
E. |
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