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A galvanic cell is constructed using aluminum and nickel. The concentration of the ions in both solutions is 1.0m, and the entire cell is at 25 degrees celcius. The salt bridge is filled with a solution of potassium nitrate. as the cell operates, which ion will flow into the anode from the salt bridge and why?
Accepted Answer
Potassium ions will flow into the anode from the salt bridge. The anode is the electrode where oxidation occurs. In this case, aluminum is being oxidized, so aluminum ions will be produced at the anode. The salt bridge is necessary to maintain electrical neutrality in the cell. Without the salt bridge, the cell would quickly stop working because the buildup of positive charge at the anode and negative charge at the cathode would prevent the flow of electrons. The potassium ions flow into the anode to balance the charge of the aluminum ions that are being produced.
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