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+//Example 7.30
+clear;
+clc;
+
+//Given
+R=0.082;//gas constant in atm dm^3 K^-1 mol^-1
+T=363;//temperature in K
+P=734;//pressure in mm Hg
+ww=27;//mass percent of water
+wA=73;//mass percent of A
+Pw=526;//vapour pressure of water in mm Hg
+
+//To determine the volume of the solution
+PA=P-Pw;//partial pressure of A in mm Hg
+MA=(Pw*18*wA)/(ww*PA);//molar mass of A in g mol^-1
+mprintf('The molar mass of A = %i g mol^-1',MA);
+//end \ No newline at end of file