Anode and Cathode

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David Sarkissian 1K
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Anode and Cathode

Postby David Sarkissian 1K » Wed Mar 13, 2019 6:16 pm

How can you figure out which side of the cell diagram will be the cathode and which will be the anode? Is it only based on the whether the Ecell is negative or positive along, or are there other factors?

Lily Benitez 2G
Posts: 63
Joined: Fri Sep 28, 2018 12:29 am

Re: Anode and Cathode

Postby Lily Benitez 2G » Wed Mar 13, 2019 7:12 pm

The anode is the oxidation and the cathode is the reduction in the reaction.

Tameen Ahmed 4C
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Anode and Cathode

Postby Tameen Ahmed 4C » Wed Mar 13, 2019 8:35 pm

If it gets oxidized then it is an anode and if it gets reduced then it is a cathode. I like to think "an ox" and "red cat" when working with half reactions and find it easier to draw my cell diagrams with anode to the left and cathode to the right since it's presented like that in the shorthand notation.

davidryan3f
Posts: 63
Joined: Fri Sep 28, 2018 12:23 am

Re: Anode and Cathode

Postby davidryan3f » Thu Mar 14, 2019 9:08 pm

In a cell diagram, the cathode was always on the right side of the double bar divider thing.

Ashley P 4I
Posts: 64
Joined: Wed Nov 15, 2017 3:04 am

Re: Anode and Cathode

Postby Ashley P 4I » Fri Mar 15, 2019 9:46 am

I thought if the E knot was negative then the cathode would be on the right?

Nghi Nguyen 2L
Posts: 61
Joined: Fri Sep 28, 2018 12:18 am

Re: Anode and Cathode

Postby Nghi Nguyen 2L » Fri Mar 15, 2019 9:43 pm

cathode is always on the right side of ll and anode always on the left side

isarose0
Posts: 62
Joined: Fri Sep 28, 2018 12:15 am

Re: Anode and Cathode

Postby isarose0 » Fri Mar 15, 2019 10:38 pm

Another way to distinguish cathode and anode is to make sure the Ecell comes out to a positive number when you subtract them

Lydia Luong 4L
Posts: 59
Joined: Fri Sep 28, 2018 12:24 am

Re: Anode and Cathode

Postby Lydia Luong 4L » Sat Mar 16, 2019 1:37 am

Cathode is always on the right side of a cell diagram and anode is always on the left side.

I am Sodium Funny
Posts: 65
Joined: Fri Sep 28, 2018 12:26 am

Re: Anode and Cathode

Postby I am Sodium Funny » Sat Mar 16, 2019 1:46 am

They will always be

E (Cathode) > E (Anode)


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