Scenario: A student dissolved 95 mg of a crude material in 4.0 mL (the minimum required) of 95% ethanol at ambient temperature. The solution was cooled in an ice-water bath for 10 minutes and pure crystals were obtained. The crystals were filtered on a Hirsch funnel and rinsed with about 0.5 mL of ice-cold ethanol. After drying, the weight of the crystals was found to be 5 mg. Why did this student recover so little?