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+//Example 7.20
+clear;
+clc;
+
+//Given
+R=82;//gas constant in atm cm^3 K^-1 mol^-1
+w2=1.35;//mass of solute in g
+h1=9.9;//the osmotic pressure in cm of water
+T=300;//temperature in K
+V=100;//volume of solution in ml
+
+//To determine the molecular mass of the polymer
+pi=(980.67*h1)/(1013250);//the osmotic pressure in atm
+M2=(w2*R*T)/(pi*V);//molecular mass of the polymer in g
+mprintf('The molecular mass of the polymer = %f g mol^-1',M2);
+//end
+\ No newline at end of file