14.23a, cell diagram

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Kayla Danesh 1F
Posts: 38
Joined: Thu Jul 13, 2017 3:00 am

14.23a, cell diagram

Postby Kayla Danesh 1F » Mon Feb 19, 2018 4:08 pm

For part a, there is Pt(s) on the right side of the diagram, but not the left. Why is this?

Also, how do you generally know when to put Pt on one side of the diagram, both, or neither? thanks

Andrea ORiordan 1L
Posts: 52
Joined: Fri Sep 29, 2017 7:04 am
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Re: 14.23a, cell diagram

Postby Andrea ORiordan 1L » Mon Feb 19, 2018 4:13 pm

I don't know the full question you're referring to, but I would assume that Pt is on the right because there are no solid or liquid state components to conduct the current, and you need an inert electrode. If there is no Pt on the left, I assume there would be a solid or liquid state compound to conduct the current.

Inert electrodes (such as Pt) are used when there is no solid or liquid state compounds to conduct current. For example, if Fe3+(aq) was being reduced to Fe2+(aq), you would need an inert electrode because Fe3+ and Fe2+ are both ions in solution.

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