//Example 7.16 clear; clc; //Given R=8.314;//gas constant in J K^-1 mol^-1 delTf=10;//Freezing temperature depression in K Kf=1.86;//molal freezing point depression constant of water K mol^-1 kg M2=32;//molecular mass of methyl alcohol in g w1=100;//mass of water in g //To determine the mass of methyl alcohol required w2=(delTf*M2*w1)/(Kf*1000);//mass of methyl alcohol required in g mprintf('The mass of methyl alcohol required = %f g',w2); //end