Anode v. Cathode

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Katelyn Pham 4E
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

Anode v. Cathode

Postby Katelyn Pham 4E » Wed Feb 20, 2019 3:24 pm

Why must anodes be on the left and cathodes on the right?

2c_britneyly
Posts: 62
Joined: Fri Sep 28, 2018 12:16 am

Re: Anode v. Cathode

Postby 2c_britneyly » Wed Feb 20, 2019 3:32 pm

It's just convention so people can easily identify the anode and cathode. There's no scientific reason behind it.

Dhwani Krishnan 1G
Posts: 63
Joined: Fri Sep 28, 2018 12:17 am

Re: Anode v. Cathode

Postby Dhwani Krishnan 1G » Wed Feb 20, 2019 4:12 pm

what is the difference between an anode and cathode?

Rimsha Hussaini 1A
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Anode v. Cathode

Postby Rimsha Hussaini 1A » Wed Feb 20, 2019 4:18 pm

The anode is where electrical current flows in from outside and is the site of the oxidation half-reaction. The cathode where electrical current flows out and is the site of the reduction half-reaction.

Gillian Murphy 2C
Posts: 30
Joined: Fri Sep 28, 2018 12:22 am

Re: Anode v. Cathode

Postby Gillian Murphy 2C » Wed Feb 20, 2019 4:20 pm

Dhwani Krishnan 1G wrote:what is the difference between an anode and cathode?


An anode is negatively charged and contains the oxidation part of a reaction, and electrons flow away from it
A cathode is positively charged and contains the reduction part of the reaction, and electrons flow towards it

Samantha Chang 2K
Posts: 69
Joined: Fri Sep 28, 2018 12:17 am

Re: Anode v. Cathode

Postby Samantha Chang 2K » Wed Feb 20, 2019 4:40 pm

The anode and the cathode are deemed right and left just as a formality so you can tell where the reactions are taking place. An anode is the oxidation part of the reaction and the cathode contains the reduction part of the reaction.

Sophie Roberts 1E
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Re: Anode v. Cathode

Postby Sophie Roberts 1E » Thu Feb 21, 2019 9:35 am

One way to remember which (anode or cathode) is redox or oxidation is by using:
A RED CAT (redox--cathode)
AN OX (anode--oxidation)

Karan Thaker 2L
Posts: 75
Joined: Fri Sep 28, 2018 12:26 am

Re: Anode v. Cathode

Postby Karan Thaker 2L » Thu Feb 21, 2019 11:33 am

The way I think of it, is that the anode repels the negatively charged electrons since it is negatively charged (loss of electrons). The cathode attracts and receives the electrons (gain of electrons).

A De Castro 14B 2H
Posts: 75
Joined: Fri Sep 28, 2018 12:29 am

Re: Anode v. Cathode

Postby A De Castro 14B 2H » Thu Feb 21, 2019 11:39 am

One way to remember the left-hand (anode) and right-hand (cathode) electrodes is the acronym AN OIL RIG CAT. This stands for Anode for Oxidation Is Losing elections, while Reduction Is Gaining elections in the Cathode.

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: Anode v. Cathode

Postby Zubair Ahmed 1L » Thu Feb 21, 2019 11:43 am

The anode is is usually placed on the left side while the cathode is placed on the right side. The anode oxidizes the material present and the cathode reduces the material present. Electrons flow away from the anode and into the cathode.


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