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Soonwoo Chung 1D
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Joined: Wed Sep 21, 2016 2:57 pm


Postby Soonwoo Chung 1D » Mon Feb 06, 2017 11:21 pm

In a redox reaction where there is no solid metal present on one of the sides, it is replaced by Platinum, but what happens to the element that Platinum replaces? For example: Fe(3+) + Cu(s) --> Cu(2+) + Fe(2+) What happens to the Fe(2+)?

Andrew Nguyen 3G
Posts: 22
Joined: Wed Sep 21, 2016 2:59 pm

Re: Platinum

Postby Andrew Nguyen 3G » Tue Feb 07, 2017 12:53 am

In terms of the reaction itself, Platinum doesn't "replace" anything, it just serves as a conduit for electron transfer. That's why it doesn't show up on the reaction equation.

What happens to the Fe2+? It is the product of the reduction of Fe3+ and oxidation of Cu. The iron remains aqueous during the reaction and just loses an electron to solid copper.

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