Writing Cell Diagrams

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GavinAleshire1L
Posts: 29
Joined: Fri Sep 28, 2018 12:21 am

Writing Cell Diagrams

Postby GavinAleshire1L » Tue Feb 26, 2019 6:08 pm

When do we know to include an inert metal (i.e. Pt) in our cell diagrams?

Joanna Pham - 2D
Posts: 113
Joined: Fri Apr 06, 2018 11:04 am

Re: Writing Cell Diagrams

Postby Joanna Pham - 2D » Tue Feb 26, 2019 7:51 pm

An UA told me you don't need it when you have a metal present on both sides of the salt bridge. However, if one or both sides lacked a metal, then you would insert Pt (s) on the side(s) without a metal

Karishma_1G
Posts: 67
Joined: Fri Sep 28, 2018 12:18 am

Re: Writing Cell Diagrams

Postby Karishma_1G » Tue Feb 26, 2019 8:03 pm

Yes just like Joanna said above, you add an inert metal to act as an electrode when there isn't already a metal on both sides.

805087225
Posts: 30
Joined: Thu Jun 07, 2018 3:00 am

Re: Writing Cell Diagrams

Postby 805087225 » Tue Feb 26, 2019 8:29 pm

We include an inert electrode when either the anode and cathode are either gas/aqueous and both the reactants and the products are in that same phase.
So for example,
A hydrogen( gas ) electrode would require a platinum electrode.


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