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Platinum

Posted: Tue Mar 03, 2020 12:24 pm
by 205192823
When writing out the cell diagram when do you know when to use Pt and not to use Pt?

Re: Platinum

Posted: Tue Mar 03, 2020 12:47 pm
by Izzie Capra 2E
You use Pt and put it in the cell digram when the half-reactions/species you are working with do not have a conducting solid. So say, all your molecules are ions in an aqueous solution, then you need a conducting solid to function as the electrode. You can use Pt because it is one of the most common conducting solids.

Re: Platinum

Posted: Tue Mar 03, 2020 12:55 pm
by Minh Ngo 4G
You use Plt (s) when you don’t have an inert conducting metal solid

Re: Platinum

Posted: Tue Mar 03, 2020 12:57 pm
by rabiasumar2E
You add Pt to your cell diagram when there is no conducting solid in any of your half-reactions.

Re: Platinum

Posted: Tue Mar 03, 2020 1:54 pm
by Daniel Toscano 1L
Pt or another inert conducting metal solid is used when there is not an inert conducting metal solid in the equation.

Re: Platinum

Posted: Tue Mar 03, 2020 2:00 pm
by Hailey Kim 4G
You include Pt(s) when there is no solid metal conductor. For example, for problem 6M.11 (part a), the cell diagram would be:
| Pt(s) | Ti3+(aq), Ti2+(aq) || Co2+(aq) | Co(s)

Re: Platinum

Posted: Tue Mar 03, 2020 2:02 pm
by kim 2I
Examples that would require Pt(s) include only having aqueous ions to aqueous ions or aqueous ions to gases as the phase change. An exception is liquid mercury that can act as a conductor.