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+//Example 7.17
+clear;
+clc;
+
+//Given
+R=8.314;//gas constant in J K^-1 mol^-1
+delTf=0.52;//Freezing temperature depression in K
+Kf=12;//molal freezing point depression constant of the solvent K mol^-1 kg
+w2=0.9;//mass of solute in g
+w1=180;//mass of solvent in g
+To=282;//freezing point of the solvent in K
+
+//To determine the molecular formula of solute,H2(CH2)n
+M2=(Kf*1000*w2)/(w1*delTf);//molecular mass of solute in g
+n=(M2-2)/14;
+mprintf('The molecular mass of the hydrocarbon = %f',M2);
+mprintf('\n The molecular formula of solute is H2(CH2)%i',n);
+//end
+\ No newline at end of file