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We are being asked to determine which reaction occurs at the cathode and which reaction occurs at the anode for a voltaic cell.
Recall: A voltaic cell represents an electrochemical cell that is spontaneous.
It has two half-cells, specifically, the anode and the cathode.
Each cell has a cell potential expressed by E or E°. (E° is the cell potential at standard conditions).
The greater the cell potential then the more likely reduction occurs. The smaller the cell potential then the more likely oxidation occurs. Reduction occurs at the cathode and oxidation occurs at the anode.
A voltaic cell is based on Ag+(aq)/Ag(s) and Fe3+(aq)/Fe2+(aq) half-cells.
Which reaction occurs at the cathode, and which at the anode of the cell?
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Based on our data, we think this problem is relevant for Professor Delgado's class at FIU.