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+//example 5.42
+
+clear;
+clc;
+
+//Given:
+disp("Zn(s)|ZnCl2(soln)||AgCl(s)|Ag-Ag|AgCl(s)|ZnCl2(soln)|Zn(s)");
+m1=0.02;//concentration[M]
+Y1=0.65;//mean ionic activity coefficient
+m2=1.5;//concentration[M]
+Y2=0.29;//mean ionic activity coefficient 
+R=8.314;//Universal gas constant[J/K/mol]
+T=298;//Temperature [K]
+F=96500;//Faraday's constant[coulomb/mol]
+
+//To find the overall e.m.f of the above cell
+E=R*T*(log(m2*Y2/m1/Y1))*3/2/F;//[volts]
+printf("The overall e.m.f of the cell is %f volts",E);
+
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