Writing a Cell Diagram

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Diondraya_Taylor_1C
Posts: 23
Joined: Wed Sep 21, 2016 2:59 pm

Writing a Cell Diagram

Postby Diondraya_Taylor_1C » Sat Mar 18, 2017 10:48 pm

How do you know whether or not to add Pt(s) when writing a cell diagram from being given two half reactions?

Alexander_Chang_1I
Posts: 18
Joined: Wed Sep 21, 2016 2:56 pm

Re: Writing a Cell Diagram

Postby Alexander_Chang_1I » Sat Mar 18, 2017 10:53 pm

If the states of matter in either the cathode or the anode are all (aq), (l), or (g), then we add a solid electrode (Pt(s) is a common one to remember, but there are others).

Diondraya_Taylor_1C
Posts: 23
Joined: Wed Sep 21, 2016 2:59 pm

Re: Writing a Cell Diagram

Postby Diondraya_Taylor_1C » Sun Mar 19, 2017 12:58 pm

Thank you!! That helps so much!

Tycho_Meimban_2B
Posts: 31
Joined: Wed Sep 21, 2016 2:57 pm

Re: Writing a Cell Diagram

Postby Tycho_Meimban_2B » Sun Mar 19, 2017 1:30 pm

If a solid (s) does not exist on one of the sides of the salt bridge (remember: anode || cathode), then yes, you can insert Pt(s).

Hope this helps!


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