Electrolysis

[SamiJ]

  is it killing anyone else or only me??? 

[Vincezor]

I found it tough the first time around. Mind you this was around the time of the holidays or maybe even a bit before that. I was just reading the textbook and honestly, found some parts of it difficult to understand. The part I didn't get (personally) was competition at the electrodes and I feel that it isn't really explained that well in the Heinemann textbook. But after going over some questions as well as my tutor going over it, I actually understand it now.

So yes, electrolysis can be a little challenging but I like to think of it like the reverse of galvanic cells (to an extent) so if you have a good understanding on that it shouldn't be too bad.

Anyway, may I ask what do you find  difficult about electrolysis?

[Mao]

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The part I didn't get (personally) was competition at the electrodes...

This was my issue also back in the days. Out of curiosity, how would you address this issue?

[HenryP]

When it comes to competition I usually make a list in my head of all the possible reactions that could happen at the anode and the cathode, and picking the reaction that is the lowest down on the table for the anode and the highest up for the cathode.
When first starting I think the hardest bit is making that list since when dealing with galvanic cells there is usually only one reaction that could take place. Also never forget to include water as a possible reductant/oxidant if its an aqueous solution. From the practise exams I've done they always seem to enjoy throwing in the "electrolysis" of aluminium in aqueous solution haha.

[Graphite]

Yes that's what I do as well you pretty much need to see which 2 reactions are most far apart