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PROCEDURE | RESULTS | DOCUMENTATION | DISCUSSION OF RESULTS | CONCLUSION | 1. Weigh out a 1 gm sample of impure acetanilide and place it in an Erlenmeyer flask.2. Add 40 ml of water and a small amount of decolorizing activated charcoal to the flask.3. Heat the flask.4. Continue heating at boiling temperature for 2 to 3 minutes or until all the solid dissolves. More boiling water may be added if the original quantity does not dissolve all the acetanilide.5 .Prepare a fluted filter paper or ask for a ready-made sample from the technician or instructor.6. Place a funnel (preferably stemless or short stem) containing the fluted paper in another Erlemeyer flask and pour a few 2o ml of boiling water through it to heat the funnel and filter paper.7. Using a stirring rod to guide the liquid, pour the hot solution through the filter. Reheat the solution if necessary to keep it hot all times during the filtration.8. Rinse the flask in which the solid was heated with 20 ml of boiling water then pour this water also through the ilter.9. Allow the filtrate to cool, undisturbed , to room temperature, and then place it in an ice bath. If crystallization has not occurred, attempt to induce it by any of the methods discussed previously.10. Collect the crystals by filtration.11. Allow the crystals to dry in air.12. When crystals are completely dry, weigh them , label and turn in to your instructor to be used for melting point determination in Activity 8. | Choosing a solventThe first consideration in purifying a solid by recrystallization is to find a suitable solvent. There are four important properties that you should look for in a good solvent for recrystallization. 1. The compound should be very soluble at the boiling point of the solvent and only sparingly soluble in the solvent at room temperature. This difference in solubility at hot versus cold temperatures is essential

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