Question

Consider a cell consisting of a zinc electrode in 1.0 M ZnSO4 solution and a copper electrode in 1.0 M CuSO4 solution. Calculate the standard cell potential of the cell at 25°C, given that the standard electrode potential for the zinc electrode is -0.76 V and for the copper electrode is +0.34 V.

Answer 1

To calculate the standard cell potential of the cell, we need to subtract the standard electrode potential of the anode  zinc electrode  from the standard electrode potential of the cathode  copper electrode .The standard cell potential  Ecell  can be calculated using the following formula:Ecell = Ecathode - EanodeGiven that the standard electrode potential for the zinc electrode  anode  is -0.76 V and for the copper electrode  cathode  is +0.34 V, we can plug these values into the formula:Ecell =  +0.34 V  -  -0.76 V Ecell = +0.34 V + 0.76 VEcell = +1.10 VTherefore, the standard cell potential of the cell at 25C is +1.10 V.