Cell Diagrams

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vpena_1I
Posts: 109
Joined: Sat Aug 24, 2019 12:15 am

Cell Diagrams

Postby vpena_1I » Wed Feb 26, 2020 8:27 pm

In 6L.3(e), the following cell diagram is given,
Pt(s)|Sn4+(aq),Sn2+(aq)||Cl-(aq)|Hg2Cl2(s)|Hg(l)

the addition of half-reactions gives:
Sn2+(aq) +Hg2Cl2(s)---> Sn4+(aq) +2Hg(l) +2Cl-(aq)

I thought Dr. Lavelle said in lecture that species separated by a comma would be in the form R,P. The balanced equation for the cell reaction, however, shows that the given cell diagram was given in the form P,R. Is there a certain order the cell diagram has to be in? I also understood that the electrodes would be placed on the ends of the cell diagram, but in the given one, Hg2Cl2, is in the middle.

Victoria Zheng--2F
Posts: 103
Joined: Fri Aug 09, 2019 12:17 am

Re: Cell Diagrams

Postby Victoria Zheng--2F » Wed Feb 26, 2020 8:45 pm

The order of the cell diagram is that the anode should be on the left of the cell diagram while the cathode would be on the right of the diagram.

vpena_1I
Posts: 109
Joined: Sat Aug 24, 2019 12:15 am

Re: Cell Diagrams

Postby vpena_1I » Wed Feb 26, 2020 11:25 pm

Is that the only specific thing?

Joowon Seo 3A
Posts: 100
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Re: Cell Diagrams

Postby Joowon Seo 3A » Thu Feb 27, 2020 9:36 am

Since the left side is the anode, the thing on the left must be oxidized.


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