Students will test the solubility of each possible component of a commercially available pain reliever in an organic solvent, ethyl acetate, and in a basic aqueous solution of sodium bicarbonate. These results will help the student create a procedure that will be used to separate components in a mixture and determine percent composition. The activity contains enough materials for 15 groups of students as well as a Teacher’s Guide and Student Study Guide Copymasters. Meets Big Idea 3, Investigation 9, Primary Learning Objective 3.10.
750mL Ethyl Acetate
750mL Sodium Bicarbonate, 10%
250mL 6.0M Hydrochloric Acid
100g Acetylsalicylic Acid
1 pkg pH Strips 1-14 Pkg/100
Materials needed but not included:
Erlenmeyer Flask, 125mL
Hot Water Bath
Lab Stand with Ring Clamps
Distilled or Deionized Water
UN1173, Ethyl acetate, 3, II, Ltd Qty
UN1789, Hydrochloric acid, 8, II, Ltd Qty
WARNING: This product can expose you to chemicals including Acetyl Salicylic Acid/Aspirin, which is known to the State of California to cause reproductive harm. For more information go to http://www.P65Warnings.ca.gov.