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+//ques-24.2
+//Calculating mole fraction of ethanol and water in a sample
+clc
+w=46;//weight of ethanol (in g)
+W=100-w;//weight of water (in g)
+n=w/46;//moles of ethanol
+N=W/18;//moles of water
+x=n/(n+N);
+printf("The mole farction of ethanol is %.2f and for water is %.2f.",x,1-x);