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+//Example 7.22
+clear;
+clc;
+
+//Given
+R=0.082;//gas constant in atm dm^3 K^-1 mol^-1
+w2=17.1;//mass of sucrose in g
+w3=9;//mass of urea in g
+w4=6;//mass of urea in g
+M2=342;//molecular mass of sucrose in g mol^-1
+M3=180;//molecular mass of glucose in g mol^-1
+M4=60;//molecular mass of urea in g mol^-1
+T=300;//temperature in K
+V=3;//volume in dm^3
+
+//To determine the osmotic pressure and the weight average and number average molar mass
+n2=w2/M2;//moles of sucrose
+n3=w3/M3;//moles of glucose
+n4=w4/M4;//moles of urea
+x2=n2/(n2+n3+n4);//mole fraction of sucrose
+x2=n3/(n2+n3+n4);//mole fraction of glucose
+x2=n4/(n2+n3+n4);//mole fraction of urea
+Mw=((w2*M2)+(w3*M3)+(w4*M4))/(w2+w3+w4);//mass average molar mass in g mol^-1
+n1=n2+n3+n4;//moles of all solutes
+pi=(n1*R*T)/V;//the osmotic pressure in atm
+Mn=((w2+w3+w4)*R*T)/(pi*V);//number average molar mass in g mol^-1
+mprintf('The mass average molar mass = %f gm mol^-1',Mw);
+mprintf('\n The osmotic pressure = %f atm',pi);
+mprintf('\n The number average molar mass = %f gm mol^-1',Mn);
+//end
+\ No newline at end of file