21.   Does relative molecular mass have the same significance when applied to potassium chloride as it has when applied to benzene?

22.   By means of the expression find the relative molecular mass of Y.

23.   Calculate the relative molecular mass of compound R.

24.   The molar mass of a molecular substance has the same numerical value as its relative molecular mass.

25.   Thus where is the relative molecular mass.

26.   The depression of freezing point can be used to determine the relative molecular mass of a non-volatile solute.

27.   Calculate the relative molecular mass of the solute.

28.   The method is particularly useful for determining the average relative molecular masses of polymers and other macromolecular substances.

29.   We have seen that three types of colligative property can be used to determine relative molecular mass.