Cathode vs Anode

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Erika Patel 3I
Posts: 106
Joined: Fri Sep 29, 2023 11:03 am

Cathode vs Anode

Postby Erika Patel 3I » Wed Feb 21, 2024 9:30 pm

Could someone explain how to determine which metal is the cathode and which is the anode?

Holly Hadsall 2H
Posts: 91
Joined: Fri Sep 29, 2023 11:07 am

Re: Cathode vs Anode

Postby Holly Hadsall 2H » Wed Feb 21, 2024 9:31 pm

The cathode is te positive region of the electrode where reduction happens. If you can determine where electrons are gained, then you know which one is the cathode.

Carrie Hester 2H
Posts: 44
Joined: Tue Nov 14, 2023 9:08 am

Re: Cathode vs Anode

Postby Carrie Hester 2H » Wed Feb 21, 2024 9:39 pm

Just to add to the original answer, if you look at the standard electrode potentials for the metals involved the metal with the higher number will be the cathode (where reduction occurs), and the metal with the lower number will be the anode (where oxidation occurs).

Lovelyn_Cave_3H
Posts: 40
Joined: Fri Sep 29, 2023 9:43 am

Re: Cathode vs Anode

Postby Lovelyn_Cave_3H » Wed Feb 21, 2024 10:01 pm

To determine which metal is the cathode and which is the anode, you can consider the reduction potentials: the metal with a more positive reduction potential will be the cathode, and the one with a less positive potential will be the anode.


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