Question: 3. The pH may be measured with a hydrogen electrode connected with a AgClAg electrode through a salt bridge. If the cell expression is Pt1H2(1bar)H(a11)::Cl(1m)AgClAg

3. The pH may be measured with a hydrogen electrode connected

3. The pH may be measured with a hydrogen electrode connected with a AgClAg electrode through a salt bridge. If the cell expression is Pt1H2(1bar)H(a11)::Cl(1m)AgClAg and the standard emf of AgClAg electrode is 0.22233 at 25C. (a) Write the half-eell reactions and cell reaction (4%); (b) Derive the relationship between pH and E, ignoring the liquid junction potential (S\%); (c) Calculate the pH value when the emf of the cell is 0.517V at 25C,(3%) (12%)pH=log[H+]

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