14.13B

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Michelle Lu 1F
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14.13B

Postby Michelle Lu 1F » Tue Feb 20, 2018 10:00 pm

For question 14.13 part B, I understand why we must use Pt as an electrode for the Ce3+ and Ce4+ side, however, why can't we use I2(s) as an electrode for the other side? It is in solid state and is involved in the redox reaction.

Chem_Mod
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Re: 14.13B

Postby Chem_Mod » Tue Feb 20, 2018 10:49 pm

Hi, Michelle,
I2 is not conducting. You need to have a metal (like Cu(s)) to serve as a conducting solid.

Michelle Lu 1F
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Re: 14.13B

Postby Michelle Lu 1F » Tue Feb 20, 2018 11:34 pm

Would a liquid metal work as an electrode as well? For example, Hg(l)?

Janine Chan 2K
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Re: 14.13B

Postby Janine Chan 2K » Wed Feb 21, 2018 8:59 pm

How do we know I2 isn't conducting?


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