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Question:

In electrolysis, the electrodes do not lose significant amount of mass even after multiple use. Why?

I have been using silver and copper electrodes in a solution of sodium chloride. I usually end up with silver chloride or copper chloride depending on which is the anode. The anode slime I produce or the residue that comes off of the anode electrode (copper or silver) is quite a lot depending on the duration it‘s on. So after an hour of electrolysis I end up with 70 grams of silver chloride or copper chloride. But the electrode loss is 5 grams from a 1 ounce bar. What is going on here??????? Is it the tarnish build up that affects the reading mass? I ended up trying to get rid of the tarnish with baking soda and aluminium. But the Loss of grams in electrodes is still.minimal. please do not think I‘m lying. I really need help why this happens.

Answer:

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I am no chemist, but the only thing I can think of is that the majority of the Copper chloride or silver chloride, is made up of the liquid, and not the metal

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