Obtain about 0.30 grams (it is not necessary to weigh this) of each of the 3 unknown substances. In your laboratory notebook make a table. This table will need to list for each of the three substances its unknown number, a qualitative description of its appearance, the solubility in water, and the solubility in hexane. To determine the solubility place about one third of your sample of each substance in 3 separate small beakers and add about 1-2 mL of distilled water. Swirl the mixture for 2-3 minutes and record your results. If your substance does dissolve, evaporate the solvent using the hot plate to recover your solid. Similarly determine the solubility in hexane, an organic solvent. If the substance dissolves, evaporate the solvent to recover it. Hexane should be evaporated in the fume hood. Question Devise a procedure for separating a mixture of the three substances. Write out your plan. Now in a clean beaker add 0.30 grams of substance A, substance B and substance C. Record the mass of each. Mix the three together. Apply your procedure for separating the three substances, and weigh each of your recovered substances. Determine the % recovery for each. Calculate percent recovery by using the following equation = % Recovery (final mass/initial mass) x 100 QUESTIONS FOR DISCUSSION Does the sum of your recovered pure substances equal the original mass of the mixture? If it does not, explain.