Question

Which of the following solutions will have the lowest freezing point?

a. 0.010 m Li2SO4
b. 0.015 m MgCl2
c. 0.035 m CH3CH2CH2OH
d. 0.010 m NaCl

Answer 1

0.035 m CH3CH2CH2OH

Step-by-step explanation:

We know that freezing point is a coligative property hence it depends on the number of solute particles present.

Covalent substances do not break up into ions, hence they do not produce many particles in solution unlike ionic substances. Hence, ionic substances have a far higher freezing point than covalent molecules.

For this reason, 0.035 m CH3CH2CH2OH has the lowest freezing point.