Solution: Consider a galvanic cell composed of the SHE and a

Chapter 18, Problem 18.76

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Consider a galvanic cell composed of the SHE and a half-cell using the reaction Ag1(aq) 1 e2 S Ag(s). (a) Calculate the standard cell potential. (b) What is the spontaneous cell reaction under standard-state conditions? (c) Calculate the cell potential when [H1] in the hydrogen electrode is changed to (i) 1.0 3 1022 M and (ii) 1.0 3 1025 M, all other reagents being held at standard-state conditions. (d) Based on this cell arrangement, suggest a design for a pH meter.

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