Pt in cell diagrams

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204301116
Posts: 16
Joined: Fri Sep 26, 2014 2:02 pm

Pt in cell diagrams

Postby 204301116 » Fri Feb 06, 2015 1:21 pm

Can someone please clarify when we put Pt in cell diagrams? How do we know if it goes on one side or both sides? Thanks

Niharika Reddy 1D
Posts: 127
Joined: Fri Sep 26, 2014 2:02 pm

Re: Pt in cell diagrams

Postby Niharika Reddy 1D » Fri Feb 06, 2015 3:00 pm

A platinum electrode is used when there is no other suitable solid metal that is present in the half reaction for the side you are looking at (anode/cathode). Electrodes are metallic conductors, so without a solid metal electrode, the electrons won't transfer. Platinum doesn't interfere with the reaction; it simply transfers the electrons, which is why it is often used when no other solid metal is present in the reaction already.


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