Adding platinum

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Adding platinum

Postby Angela_Kim_1N » Mon Feb 13, 2017 8:51 pm

How do I know when to add Platinum to a cell diagram?
I thought platinum was added when there were no solids in the equation. However for homework problem 14.13 part b, the cell diagram is
Pt(s) I I^-(aq) I I2(s) II Ce^-4(aq), Ce^3+ (aq) I Pt(s)

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Re: Adding platinum

Postby Chem_Mod » Mon Feb 13, 2017 8:54 pm

Generally, you add platinum when there are no solids in your half reactions. For this problem, it is okay if you did not write platinum for the anode.

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