Chapter 19, Problem 72AP

Consider a galvanic cell composed of the SHE and a halt-cell using the reaction ${\text{Ag}}^{\text{+}}\left(aq\right)\text{ + }e\underset{}{\to }\text{ Ag}\left(s\right)$. (a) Calculate the standard cell potential. (b) What is the spontaneous cell reaction under standard-state conditions? (c) Calculate the cell potential when [H^-] in the hydrogen electrode is changed to $\left(\text{i}\right)\text{ 1}\text{.0 }\times {\text{ 10}}^{\text{-2}}M\text{ and }\left(\text{ii}\right)\text{ 1}\text{.0 }\times {\text{ 10}}^{\text{-5}}M$. all other reagents being held at standard-state conditions. (d) Based on this cell arrangement, suggest a design for a pH meter.