Chapter 17, Problem 23E

For each reaction listed, determine its standard cell potential at 25 °C and whether the reaction is spontaneous at standard conditions.

(a) $\text{Mg}\left(s\right)+{\text{Ni}}^{2+}\left(aq\right)\to {\text{Mg}}^{2+}\left(aq\right)+\text{Ni}\left(s\right)$

(b) ${\text{2Ag}}^{+}\left(aq\right)+\text{Cu}\left(s\right)\to {\text{Cu}}^{2+}\left(aq\right)+2\text{Ag}\left(s\right)$

(c) $\text{Mn}\left(s\right)+\text{Sn}{\left({\text{NO}}_3\right)}_2\left(aq\right)\to \text{Mn}{\left({\text{NO}}_3\right)}_2\left(aq\right)+\text{Sn}\left(s\right)$

(d) $\text{3Fe}{\left({\text{NO}}_3\right)}_2\left(aq\right)+\text{Au}{\left({\text{NO}}_3\right)}_3\left(aq\right)\to \text{3Fe}{\left({\text{NO}}_3\right)}_3\left(aq\right)+\text{Au}\left(s\right)$