Cell diagram

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Maria Solis Disc 1G
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am
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Cell diagram

Postby Maria Solis Disc 1G » Sun Mar 10, 2019 7:54 pm

When drawing a cell diagram, why is platinum or carbon i belive included in the diagram if it is not involved in the actual reaction.

Jonas Talandis
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: Cell diagram

Postby Jonas Talandis » Sun Mar 10, 2019 7:56 pm

We include these typically when there is no solid involved on that side of the reaction. If there's no solid, there's usually no conductor to actually transfer these electrons so we use an inert one.

Carissa Young 1K
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Cell diagram

Postby Carissa Young 1K » Sun Mar 10, 2019 8:25 pm

What doesn't get put in the cell diagram? Is it just solids and H2O liquid? Does H+ get put in the cell diagram?

dgerges 4H
Posts: 65
Joined: Fri Sep 28, 2018 12:24 am

Re: Cell diagram

Postby dgerges 4H » Sun Mar 10, 2019 8:27 pm

there must be a solid in the reaction so if there isn't one we add Pt(s) in place

Erin Kim 2G
Posts: 75
Joined: Fri Sep 28, 2018 12:26 am

Re: Cell diagram

Postby Erin Kim 2G » Sun Mar 10, 2019 8:31 pm

If one side of the reaction (anode or cathode) does not have a solid component, than Pt (a solid) must be added in order to have a solute.

Nicole Garrido 2I
Posts: 52
Joined: Fri Sep 28, 2018 12:18 am

Re: Cell diagram

Postby Nicole Garrido 2I » Sun Mar 10, 2019 8:36 pm

To conduct electricity, move ions, the reaction needs electrodes to move them. So if there is no metal solid in the reaction there is no electrode. So platinum is used as a conductor.

Kyither Min 2K
Posts: 60
Joined: Wed Oct 03, 2018 12:15 am

Re: Cell diagram

Postby Kyither Min 2K » Tue Mar 12, 2019 11:17 pm

There has to be a solid in the cell to transfer the electrons. Therefore, if the reaction itself doesn't have a solid or metal we add carbon or platinum.


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