Question

1. The following values were obtained as EMF of the cell constructed by connecting Zn & Calomel and Cu & Calomel electrodes. Find out the standard electrode potential of the Zn and Cu electrodes. Electrode/ Electrolyte Electrolyte conc. (N) $E_{cell}$ (V) $E_{M/M^+} = $ $E_{cell} + E_{calomel}$ $E^o_{M/M^+}$ Average $E^o_{M/M^+}$ 0.01 N -1.036 Zn/Zn$^{2+}$ 0.05 N -1.034 0.1 N -1.033 0.01 N +0.031 Cu/Cu$^{2+}$ 0.05 N +0.042 0.1 N +0.052 2. Find out the EMF of the cell constructed with Zn and Cu electrodes with the following electrolytes having mentioned concentration. Concentration Concentration EMF of the Cell Metal Metal (N) (N) ($E_{cell}$ / V) 0.01 N 0.01 N Zn/Zn$^{2+}$ 0.05 N Cu/Cu$^{2+}$ 0.05 N 0.1 N 0.1 N

          1. The following values were obtained as EMF of the cell constructed by connecting
Zn & Calomel and Cu & Calomel electrodes. Find out the standard electrode
potential of the Zn and Cu electrodes.
Electrode/ Electrolyte
Electrolyte conc. (N)
$E_{cell}$ (V)
$E_{M/M^+} = $
$E_{cell} + E_{calomel}$
$E^o_{M/M^+}$
Average
$E^o_{M/M^+}$
0.01 N
-1.036
Zn/Zn$^{2+}$
0.05 N
-1.034
0.1 N
-1.033
0.01 N
+0.031
Cu/Cu$^{2+}$
0.05 N
+0.042
0.1 N
+0.052
2. Find out the EMF of the cell constructed with Zn and Cu electrodes with the
following electrolytes having mentioned concentration.
Concentration
Concentration
EMF of the Cell
Metal
Metal
(N)
(N)
($E_{cell}$ / V)
0.01 N
0.01 N
Zn/Zn$^{2+}$
0.05 N
Cu/Cu$^{2+}$
0.05 N
0.1 N
0.1 N

1. The following values were obtained as EMF of the cell constructed by connecting
Zn Calomel and Cu Calomel electrodes. Find out the standard electrode
potential of the Zn and Cu electrodes.
Electrode/ Electrolyte
Electrolyte conc. (N)
Ecell (V)
EM/M^+ =
Ecell + Ecalomel
E^oM/M^+
Average
E^oM/M^+
0.01 N
-1.036
Zn/Zn^2+
0.05 N
-1.034
0.1 N
-1.033
0.01 N
+0.031
Cu/Cu^2+
0.05 N
+0.042
0.1 N
+0.052
2. Find out the EMF of the cell constructed with Zn and Cu electrodes with the
following electrolytes having mentioned concentration.
Concentration
Concentration
EMF of the Cell
Metal
Metal
(N)
(N)
(Ecell / V)
0.01 N
0.01 N
Zn/Zn^2+
0.05 N
Cu/Cu^2+
0.05 N
0.1 N
0.1 N

Added by John M.

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