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The solutions manual mentions that inert electrodes are necessary for gas/ion electrode reactions. What are all possible situations where we would need an inert electrode? Would we be marked down if we included an inert electrode in the cell diagram where it wasn’t necessary?
I'm not entirely sure about all the scenarios, but I suppose you would need an inert electrode whenever you don't want the electrode messing up the reaction, as in, you only want it to transfer electrons instead of exchanging ions. That's typically the situation for gas/ion electrode reactions. As for grading, idk--anyone else know?
allyz1F wrote:What about for salt bridges too? When do you know to include a salt bridge in the cell diagram and when is it not necessary?
The salt bridge maintains the charges between the anode and cathode so the reaction can happen, but you don't always have to use a salt bridge. Porous disks work as well.
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