Chapter 12, Problem 18RQ

Solubility as a Function of Temperature

If a saturated solution of ${\text{NH}}_{\text{4}}{\text{NO}}_{\text{3}}\text{ at 75 °C}$ is cooled to $\text{15 °C}$, how many grams of solute will separate if the quantity of the solvent is 125 g? (Use the data in Figure 12.10.)

Figure 12.10 | Solubility in water versus temperature for several substances. Most substances become more soluble when the temperature of the solution is increased, but the amount of this increased solubility varies considerably.