A solid has a solubility at room temperature of 78 grams per liter.If 1.0 L of a hot solution containing 100.g of solute is cooled to room temperature,how much solid is formed?
A)22 g
B)100 g
C)78 g
D)1 L
E)78g/L

Question

Quizplus · Accepted Answer

Since the solubility of the solid at room temperature is 78 g/L, any excess of solute beyond that amount will not remain dissolved in the solution when it is cooled. Therefore, the excess solute (100 g - 78 g = 22 g) will form solid upon cooling to room temperature.

A Solid Has a Solubility at Room Temperature of 78