The solubility of benzoic acid in water is:
0.29 g/100 mL at 20°C
6.8 g/100 mL at 100°C
a) What is the maximum mass of benzoic acid that would crystallize out of solution if 8.0 g of benzoic acid was dissolved in 150 mL of boiling water, filtered while hot, cooled to room temperature (20°C), filtered with suction, and dried?
b) If you had a 2.00 g sample of impure benzoic acid, what volume of water would you use for recrystallization to give a good recovery of a pure sample?