Chemistry - Electrochemistry Question with Solution | TestHub

From the given cell representation, copper ($\mathrm{Cu}$) undergoes oxidation and acts as the anode, while silver ($\mathrm{Ag}$) undergoes reduction and acts as the cathode.

The standard cell potential is given by:

${\mathrm{E}}_{\text{cell}}^{\circ }={\mathrm{E}}_{\text{cathode}}^{\circ }-{\mathrm{E}}_{\text{anode}}^{\circ }$

Substituting the given values:

$0.647={\mathrm{E}}_{\mathrm{Ag}}^{\circ }-{\mathrm{E}}_{\mathrm{Cu}}^{\circ }$

$0.647={\mathrm{E}}_{\mathrm{Ag}}^{\circ }-0.153$

${\mathrm{E}}_{\mathrm{Ag}}^{\circ }=0.647+0.153$

${\mathrm{E}}_{\mathrm{Ag}}^{\circ }=0.8\text{ V}$

Answer: 0.8 V