Pt in Cell Diagram

[Anthony Hatashita 4H]

When do we use Pt in a cell diagram?

[Indy Bui 1l]

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]

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

[Venus_Hagan 2L]

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]

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

[ValerieChavarin 4F]

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]

A solid metal has to be used as an electrode

[Rafsan Rana 1A]

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]

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]

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]

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

[Xavier Herrera 3H]

You would use Pt if the species of the redox reaction aren't in solid form. This is because you need a solid metal to act as an electrode in a redox reaction, and Pt is commonly used for this job since it isn't reactive.

[BKoh_2E]

Chem_Mod replied in another post "In Chem 14B we'll keep it simple. Whenever a conducting electrode is needed, use Pt."

[Jiapeng Han 1C]

Pt is used when we are using hydrogen as our electrode or an aqueous solution as our electrode, such as Fe3+, Fe2+|Pt. Pt is used when no other metal is available.

[Joshua Swift]

You use platinum when one of your half reactions has no conducting solid and has both its reactants and products in the solution. It is an inert conductor which can act as an electrode in either the cathode or anode to transfer e-