Cell Diagram

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Stevin1H
Posts: 89
Joined: Fri Sep 28, 2018 12:17 am

Cell Diagram

Postby Stevin1H » Tue Feb 26, 2019 2:09 pm

When do we know to add an inert electrode in the cell diagram? And how do we know which half reactions to used based on the appendix for certain reactions. (Ex. AgBr(s) -><- Ag+(aq) + Br-(aq))

Vicky Lu 1L
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

Re: Cell Diagram

Postby Vicky Lu 1L » Tue Feb 26, 2019 3:16 pm

We would use an inert electrode in the cell diagram when the oxidization or reduction side do not have a solid metal. In Fe^3(aq) + e- --> Fe^2+(aq), we would use Pt(s) or C(graphite) to act as the filler metal since the oxidation/reduction side don't have a metal.

Emily Huang 1E
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

Re: Cell Diagram

Postby Emily Huang 1E » Tue Feb 26, 2019 3:36 pm

An inert electrode is used when half rxns have no conducting solid

Lynsea_Southwick_2K
Posts: 55
Joined: Fri Sep 28, 2018 12:25 am

Re: Cell Diagram

Postby Lynsea_Southwick_2K » Tue Feb 26, 2019 3:41 pm

How do we know which one to add out of Pt(s) or C graphite?

Arianna Ko 2E
Posts: 33
Joined: Fri Sep 28, 2018 12:20 am

Re: Cell Diagram

Postby Arianna Ko 2E » Tue Feb 26, 2019 3:58 pm

For a side that lacks a solid conductor, add Pt(s) to that side. This is the inert conductor you should use as the electrode to transfer electrons.


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