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Pt(s)H2(g)(1atm),HCl(m),AgCl(s)Ag(s),t=25.0C. The e.m.f. of this battery has been measured at several molalities: At 298K and with an activity for the solute aHCl=a=0.24. Using the tabulated

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Pt(s)H2(g)(1atm),HCl(m),AgCl(s)Ag(s),t=25.0C. The e.m.f. of this battery has been measured at several molalities: At 298K and with an activity for the solute aHCl=a=0.24. Using the tabulated standard potentials for the half-cells, when we add to the cell a 0.2mol/kg solution of KF. (Consider that all electrolytes are fully dissociated and do not form ionic pairs.)

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