Final answer:
To predict the recovery of benzoic acid crystallized from water, one must know the solubility of benzoic acid at 95°C. The solubility in hot water is higher than in cold water, and the recovery upon cooling depends on the change in solubility. Solubility data from reference sources are required to estimate the amount of benzoic acid that can be recovered by crystallization.
Step-by-step explanation:
The expected recovery of benzoic acid when crystallized from the minimum amount of hot water at 95°C cannot be determined without the solubility data of benzoic acid at 95°C. However, the solubility of benzoic acid in water increases with temperature, which means that at hot temperatures such as 95°C, more benzoic acid will dissolve in water than at 25°C. Once the solution is cooled, the solubility decreases and crystals form; the amount of recovery will be based on how much the solubility decreases as the solution cools down.
The fractional crystallization technique is commonly used to separate components based on solubility differences, which would also apply to benzoic acid when crystallized from water. Although we don't have the specific solubility values at 95°C within the text provided, standard reference books or solubility tables can be used to find this information to estimate the expected recovery of benzoic acid.