In the experimental setup illustrated below, copper and cadmium electrodes are i...
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In the experimental setup illustrated below, copper and cadmium electrodes are immersed in seawater and are connected by an external conductive wire. A semi-permeable membrane is positioned between the electrodes, allowing ion exchange while preventing the mixing of the individual electrolyte solutions around each electrode. Redraw the diagram and use it to help answer the questions below:
The following is the Galvanic Series in Seawater
(a)
(b)
(c)
(d) If air is bubbled onto surface of the aluminium alloy electrode, would you expect to see an increase in the current? Explain your answer.
(e) If the aluminium alloy electrode is partially removed so that only half the original surface is immersed in the solution, would you expect to see a large change in the current? Explain your answer.
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