Cathode/Right & Anode/Left

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AngieGarcia_4F
Posts: 120
Joined: Thu Jul 25, 2019 12:17 am

Cathode/Right & Anode/Left

Postby AngieGarcia_4F » Sun Mar 01, 2020 10:34 pm

On tests for example, will the cathode always be on the right and the anode always on the left?
If not, how do I tell which is the anode and which is the cathode?

Tracy Tolentino_2E
Posts: 140
Joined: Sat Sep 07, 2019 12:17 am

Re: Cathode/Right & Anode/Left

Postby Tracy Tolentino_2E » Sun Mar 01, 2020 10:35 pm

Generally, that's what we assume the cathode and anode to be. If not, you would need to see the oxidation numbers to figure out which reaction is which.

Anna Chen 1K
Posts: 104
Joined: Thu Jul 25, 2019 12:18 am

Re: Cathode/Right & Anode/Left

Postby Anna Chen 1K » Sun Mar 01, 2020 10:39 pm

Generally, yes, the cathode is usually on the right and the anode is usually on the left. However, if you want to make sure, the cathode is always the reduction while the anode is always the oxidation. You determine which solution is reduced and oxidized by looking at the transfer of electrons in the overall reaction.

JesseAuLec1Dis1G
Posts: 52
Joined: Mon Jun 17, 2019 7:23 am

Re: Cathode/Right & Anode/Left

Postby JesseAuLec1Dis1G » Sun Mar 01, 2020 10:41 pm

You can remember that the cathode is always reduction and the anode is always oxidation with this trick: "red cat" and "an ox" if that's helpful.

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

Re: Cathode/Right & Anode/Left

Postby Rafsan Rana 1A » Sun Mar 01, 2020 10:42 pm

To add on, the electrode at which the electrons enter and “add to” the cell is the cathode while the electrode at which the electrons leave the cell is the anode.

Maria Poblete 2C
Posts: 102
Joined: Wed Sep 18, 2019 12:15 am

Re: Cathode/Right & Anode/Left

Postby Maria Poblete 2C » Sun Mar 01, 2020 10:48 pm

The default setup typically ensures that the anode is on the left and cathode is on the right for standard cell notation.

preyasikumar_2L
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

Re: Cathode/Right & Anode/Left

Postby preyasikumar_2L » Sun Mar 01, 2020 10:58 pm

Oxidation happens at the anode and reduction happens at the cathode. Electrons leave the anode and go to the cathode.

Angela Wu-2H
Posts: 50
Joined: Fri Aug 30, 2019 12:16 am

Re: Cathode/Right & Anode/Left

Postby Angela Wu-2H » Sun Mar 01, 2020 11:05 pm

Anode = Left = Oxidation (Losing electrons) meanwhile Cathode = Right = Reduction (Gaining electrons)


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