Exam 6: Reactions

Consider the following cell: Pt|Fe²⁺(aq,0.50 M),Fe³⁺(aq,0.30 M)m Fe³⁺(aq,0.035 M),Fe²⁺(aq,0.010)|Pt The standard potential for the Fe³⁺/Fe²⁺ couple is +0.77 V.Calculate the cell voltage at 25 ^$\omicron$ C.

Given: Ag⁺(aq)+ e^- $\rightarrow$ Ag(s) E° = 0.80 V Fe³⁺(aq)+ e^- $\rightarrow$ Fe²⁺(aq) E ^$\omicron$ = 0.77 V Cu²⁺(aq)+ 2e^- $\rightarrow$ Cu(s) E ^$\omicron$ = 0.34 V Which is the strongest reducing agent?