Anode/ Cathode

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Chew 2H
Posts: 34
Joined: Fri Sep 29, 2017 7:05 am

Anode/ Cathode

Postby Chew 2H » Mon Feb 12, 2018 5:15 pm

In the anode/cathode diagram we saw, is Anode always on the left side or can it be switched? If so, how would we know which is which?

Jakob von Morgenland 2C
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Re: Anode/ Cathode

Postby Jakob von Morgenland 2C » Mon Feb 12, 2018 5:35 pm

I believe Dr. Lavelle will generally put the anode on the left and the cathode on the right. However, if you are unsure, look at the standard reduction potentials chart and determine which one is being reduced and which one is being oxidized from those values. Always try to make the voltage positive.

Riya Pathare 2E
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Re: Anode/ Cathode

Postby Riya Pathare 2E » Mon Feb 12, 2018 6:05 pm

A clever way to remember it is "Red Cat" or "red"uction at the "cat"hode.

Ashley Garcia 2L
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Joined: Fri Sep 29, 2017 7:05 am

Re: Anode/ Cathode

Postby Ashley Garcia 2L » Fri Feb 16, 2018 4:46 pm

Generally, the anode is on the left and the cathode is on the right. If this is not the case, however, you can identify which electrode is the anode and which is the cathode by looking at the half reactions. The oxidation half reaction takes place at the anode (electrons are lost), the reduction half reaction takes place at the cathode (electrons are gained).

Justin Folk 3I
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Joined: Wed Sep 21, 2016 2:56 pm

Re: Anode/ Cathode

Postby Justin Folk 3I » Fri Feb 16, 2018 5:18 pm

Red Cat-- reduction at cathode
An Ox-- anode oxidation

Meredith Steinberg 2E
Posts: 50
Joined: Thu Jul 13, 2017 3:00 am

Re: Anode/ Cathode

Postby Meredith Steinberg 2E » Fri Feb 16, 2018 5:38 pm

Usually the anode is on the left and the cathode is on the right, and we see the electrons flow from left to right. If this isn't the case, though, just remember that oxidation (loss of elections) occurs at the anode and reduction (gain of electrons) occurs at the cathode.

Mitch Walters
Posts: 45
Joined: Fri Sep 29, 2017 7:07 am

Re: Anode/ Cathode

Postby Mitch Walters » Fri Feb 16, 2018 7:21 pm

I believe that the template usually has the anode on the left, but I don't think it physically needs this to work.


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