purpose of C(gr) at anode?  [ENDORSED]

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Yiling Liu 1N
Posts: 25
Joined: Sat Jul 09, 2016 3:00 am

purpose of C(gr) at anode?

Postby Yiling Liu 1N » Sat Feb 11, 2017 2:32 pm

In question 14.11, the cell diagram is C(gr) | H2(g) | H+ (aq) || Cl-(aq) | Cl2(g) | Pt(s)

I was just curious what the purpose of having Carbon in graphite form at the anode? How do we know when to have Pt or C at an electrode?

Thanks

Maggie Bui 1H
Posts: 35
Joined: Fri Jul 22, 2016 3:00 am
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Re: purpose of C(gr) at anode?

Postby Maggie Bui 1H » Sat Feb 11, 2017 3:33 pm

Though I'm not sure when you'd choose which as an electrode, graphite functions as an inert electrode much as platinum does.

Hannah_El-Sabrout_2K
Posts: 20
Joined: Wed Sep 21, 2016 2:58 pm

Re: purpose of C(gr) at anode?  [ENDORSED]

Postby Hannah_El-Sabrout_2K » Sat Feb 11, 2017 5:42 pm

C(gr) is interchangeable with Pt(s) since both serve as inert electrodes. They are needed to carry the electrons into/out of the electrode compartment. You pretty much need one whenever you have a hydrogen electrode. I hope that was helpful!


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