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Sabah Islam 1G
Posts: 50
Joined: Sat Jul 22, 2017 3:01 am


Postby Sabah Islam 1G » Mon Feb 19, 2018 10:52 pm

When an equilibrium reaction, how can you tell which reaction is the anode reaction and which is the cathode reaction? How do you know when to reverse the anode reaction?

K Stefanescu 2I
Posts: 68
Joined: Fri Sep 29, 2017 7:04 am

Re: 14.15

Postby K Stefanescu 2I » Tue Feb 20, 2018 11:29 am

Reduction occurs at the cathode, while oxidation occurs at the anode. So, the metal that gains electrons is the cathode. Thus, the anode is the source of electrons (the metal loses electrons). When calculating E, remember to reverse the sign of the reduction reaction's E before adding it to the E of the cathode.

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