- (C) A 2.0 molal solution of sucrose (C 12 H 22 O 11 ) would have the lowest
boiling point because that solution would contain the fewest number of solute
particles. Despite the other solutions having the same overall molality with
respect to the solvent, they are all ionic solids. The ionic solids will all
dissociate into multiple particles per formula, whereas the molecular
substance, sucrose, will not. Hence, the molalities and colligative properties
(such as boiling points) of the ionic solids will all be greater than those of
nonionic sucrose.
