Chapter 12, Problem 147CP

The following problems are related to the topics in this chapter. However, they do not all follow the chapter order, and they require you to combine concepts and skills from several sections. These problems will help you increase your critical thinking skills and prepare for your next exam.
12.147 Calculate the freezing point of each of the following solutions:
a. $1.36 \text{mol}$ of methanol, ${\text{CH}}_4\text{O}$ , a nonelectrolyte, added to $1.00 \text{kg}$ of water
b. $640.\text{g}$ of the antifreeze propylene glycol, ${\text{C}}_3{\text{H}}_8{\text{O}}_2$ , a nonelectrolyte, dissolved in $1.00 \text{kg}$ of water
c. $111 \text{g}$ of $\text{KCl}$ , a strong electrolyte, dissolved in $1.00 \text{kg}$ of water