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galvanic cells: about the standard electrode potential (thats what I think it is

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chemicalLindsay:
I remember reading about the standard electrode potential (thats what I think it is called) and I recall the standard hydrogen cell where there is an acid as an electrolyte and a platinum .Do they use platinum as the electrode to compare with the other half cell as they dont react with an acid thus the el;ectrons must be coming from the other half cell.

Donaldson Tan:
of course an inert electrode such as Pt will be used. The electron exchange occurs between hydrogen gas and the hydrogen ions, not from Pt metal.

chemicalLindsay:
thanks thats what I thought.

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