6L.5b cell diagrams

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Alicia Lin 2F
Posts: 83
Joined: Wed Sep 18, 2019 12:17 am

6L.5b cell diagrams

Postby Alicia Lin 2F » Wed Feb 19, 2020 8:35 pm

With the information we are given, how do we know when to put the Pt(s) as the outermost component of each electrode? The answer key puts Pt(s) in the cell diagrams for part b and c but not a or d. But this is never given in any of the equations.

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Re: 6L.5b cell diagrams

Postby Vincent Leong 2B » Wed Feb 19, 2020 9:00 pm

If there are no solids in one of the half reactions, an inert metal electrode is necessary in order to conduct electrons on that side of the reaction. Basically, if there is aq, liquid, or g in your half reactions, make sure to add Pt(s) (we choose Pt bc its a common metal electrode) to the cell diagram.

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