Calculate the potential of the following cell. Also, indicate, whether the cell,

Question

Calculate the potential of the following cell. Also, indicate, whether the cell, as written, is galvanic or electrolytic. Pt|TiO2+ (0.0790), Ti3+(0.00918M), H+ (0.0147 M) || VO2+ (0.1340M), V3+ (0.0784 M), H+ (0.0538 M)|Pt| Calculate the potential of the following cell. Also, indicate, whether the cell, as written, is galvanic or electrolytic. Pt|TiO2+ (0.0790), Ti3+(0.00918M), H+ (0.0147 M) || VO2+ (0.1340M), V3+ (0.0784 M), H+ (0.0538 M)|Pt| Calculate the potential of the following cell. Also, indicate, whether the cell, as written, is galvanic or electrolytic. Pt|TiO2+ (0.0790), Ti3+(0.00918M), H+ (0.0147 M) || VO2+ (0.1340M), V3+ (0.0784 M), H+ (0.0538 M)|Pt|

Explanation / Answer

Pt|TiO2+ (0.0790), Ti3+(0.00918M), H+ (0.0147 M) || VO2+ (0.1340M), V3+ (0.0784 M), H+ (0.0538 M)|Pt|

E0[TiO2+   +   2H+ + e-   --à Ti3+ H2O] =+0.099 V

E0[ViO2+   +   2H+ + e-   --à V3+ + H2O] =+0.359 V

E right =0.359 -0.0592 log(0.0784 /    0.1340*(0.053)^2)=0.223 V

E left =0.099 -0.0592 log(0.00918 /   0. 0790*(1.47)^2)= -0.063 V

E cell = E right - E left =

= 0.223 V – (-0.063 V)= 0.286v

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