Pt in Cell Diagram

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Anthony Hatashita 4H
Posts: 103
Joined: Wed Sep 18, 2019 12:21 am

Pt in Cell Diagram

Postby Anthony Hatashita 4H » Sat Mar 14, 2020 6:26 pm

When do we use Pt in a cell diagram?

Indy Bui 1l
Posts: 99
Joined: Sat Sep 07, 2019 12:19 am

Re: Pt in Cell Diagram

Postby Indy Bui 1l » Sat Mar 14, 2020 6:30 pm

There has to be a solid metal present in a cell diagram, Pt just happens to be the most common that is used if one isn't presented in the question.

Philip
Posts: 100
Joined: Sat Sep 07, 2019 12:16 am

Re: Pt in Cell Diagram

Postby Philip » Sat Mar 14, 2020 6:31 pm

I think it is used when there's no solid that was explicitly said in the problem.

Venus_Hagan 2L
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: Pt in Cell Diagram

Postby Venus_Hagan 2L » Sat Mar 14, 2020 6:33 pm

if the reactants and products of the half-reaction are not in solid form, you need some type of solid metal as the electrode. Usually, you use Pt(s) because it is a fairly non-reactive metal.

rachelle1K
Posts: 109
Joined: Sat Sep 07, 2019 12:16 am

Re: Pt in Cell Diagram

Postby rachelle1K » Sun Mar 15, 2020 6:21 am

whenever there is no other conducting solid, Pt is usually used.

ValerieChavarin 4F
Posts: 99
Joined: Wed Sep 18, 2019 12:18 am

Re: Pt in Cell Diagram

Postby ValerieChavarin 4F » Sun Mar 15, 2020 7:24 am

Pt(s) is used when there is no conductive solid participating in the reaction. It is an inert metal, therefore will not affect the redox rxn.

Owen-Koetters-4I
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Joined: Fri Sep 28, 2018 12:16 am

Re: Pt in Cell Diagram

Postby Owen-Koetters-4I » Sun Mar 15, 2020 1:08 pm

A solid metal has to be used as an electrode

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

Re: Pt in Cell Diagram

Postby Rafsan Rana 1A » Sun Mar 15, 2020 3:31 pm

Also, pt is used when dealing with hydrogen, and when two of the molecules are in the same phase such as both are aqueous solutions.

Ivan Tadeja 1G
Posts: 81
Joined: Fri Sep 28, 2018 12:28 am

Re: Pt in Cell Diagram

Postby Ivan Tadeja 1G » Tue Mar 17, 2020 12:24 pm

Venus_Hagan 2L wrote:if the reactants and products of the half-reaction are not in solid form, you need some type of solid metal as the electrode. Usually, you use Pt(s) because it is a fairly non-reactive metal.


Would any other non-reactive metals be used as a substitute? Or will it always be platinum?

briannam_1F
Posts: 35
Joined: Wed Sep 18, 2019 12:18 am

Re: Pt in Cell Diagram

Postby briannam_1F » Tue Mar 17, 2020 9:16 pm

I had asked my TA about when to use Pt(s) or when to use C(gr) and she recommended to just go with using Pt(s).

EllieSchmidtke_4I
Posts: 51
Joined: Wed Feb 20, 2019 12:16 am

Re: Pt in Cell Diagram

Postby EllieSchmidtke_4I » Tue Mar 17, 2020 9:33 pm

Pt(s) can be added at the ends of a cell diagram to indicate an electrode present in the reaction.


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