Platinum

Moderators: Chem_Mod, Chem_Admin

Soonwoo Chung 1D
Posts: 26
Joined: Wed Sep 21, 2016 2:57 pm

Platinum

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.


Return to “Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams”

Who is online

Users browsing this forum: No registered users and 2 guests