usage of platinum of cell diagrams

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sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

usage of platinum of cell diagrams

Postby sarahsalama2E » Sun Mar 01, 2020 4:14 pm

Just to clarify, do you only have to use platinum as an electrode if there are no solids present in the cell diagram? What happens if there is solid present only on one of the sides of the cell diagram?

JohnWalkiewicz2J
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Re: usage of platinum of cell diagrams

Postby JohnWalkiewicz2J » Sun Mar 01, 2020 4:17 pm

Typically you include a Pt electrode in the diagram if there is no solid present for either the anode reaction or the cathode reaction. So if there is a solid present on one side (Cu (s)) yet only aqueous solutions on the other (Fe2+(aq)), then you would use a Pt electrode on the side that lacks a solid electrode.

Jessica Castellanos
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Re: usage of platinum of cell diagrams

Postby Jessica Castellanos » Sun Mar 01, 2020 4:19 pm

If there is a solid only on one side, then the other side will contain an inert solid like Platinum. The metal on the other side will not be used for both because you want a metal that won't affect the reaction.

DHavo_1E
Posts: 118
Joined: Sat Aug 17, 2019 12:17 am

Re: usage of platinum of cell diagrams

Postby DHavo_1E » Sun Mar 01, 2020 7:02 pm

Hello,

Could you explain the purpose of inert metals like platinum in the reaction? Thank you!

Charysa Santos 4G
Posts: 107
Joined: Wed Sep 18, 2019 12:21 am

Re: usage of platinum of cell diagrams

Postby Charysa Santos 4G » Sun Mar 01, 2020 7:10 pm

You would simply use a Platinum electrode where there isn't a solid metal electrode present for a certain cell.

faithkim1L
Posts: 105
Joined: Fri Aug 09, 2019 12:17 am

Re: usage of platinum of cell diagrams

Postby faithkim1L » Sun Mar 01, 2020 7:28 pm

Usually you use Pt as an electrode in the diagram if there is no solid present for either the anode reaction or the cathode reaction. Lavelle mentioned that graphite can also be used, but it's not nearly as common as Platinum.


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