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Determine at 298 K for the cell Pt | Q, QH, H (a) its emf when pH = 5.0, (b) the pH when Ecell

Determine at 298 K for the cell Pt | Q, QH, H (a) its emf when pH = 5.0, (b) the pH when Ecell = 0, (c) the positive electrode when pH = 7.5. 1 M KCl | HgCl(s) | Hg(1) | Pt !

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