Experiment 6: Organic Chemistry

Experiment 6 titled “Organic Chemistry” and the purpose of this lab is to get familiar with some organic functional group and test certain reactions of selected functional groups. To do the first part of the experiment (combustion test), instructor demonstration in hood, and record the observation. Part A (combustion of toluene) pour 1 milliliter of toluene into a evaporating dish and ignite it with a flaming wood splint. Most importantly put the flame with a watchglass. Part B (combustion of ethyl alcohol), pour 1 mL of ethyl alcohol into an evaporating dish and same as part A ignite with flaming wood. Importantly put out the flame with a watchglass. Part C (combustion of acetylene), invert a test tube with water into a 600-mL beaker about
As the CaC2 bubbles, cover the test tube and the acetylene gas will fill the test tube by displacing the water. After that, bring out the test tube and ignite it. For Preparation of Iodoform, a Halogen Derivative (or Alkyl Halide), first place two milliliter of ethyl in a small beaker and add few crystals of iodine and stir to dissolve. Then, add 10% sodium hydroxide solution and stir it until its goes from brown to yellow. Record the observation on the data sheet. For preparation of ethyl acetate, first place 3 mL of glacial acetic acid in a test tube and describe the odor on the data sheet. Then, add 3 mL of ethyl alcohol to the test tube and 5 drops of concentrated sulfuric acid to the test tube. Mix with a glass stirring rod and heat a beaker with a water until its boiled. Lastly, pour the content of the test tube into a beaker containing 20 mLs of water and record the observation. For Aspirin, place 2 grams of salicylic acid in a small flask and add 4 mLs of acetic anhydride to the flask and this must be in the HOOD. Add 4 drops of concentrated sulfuric acid and mix the content with a rod and stand it for 10 minutes. Mix again and cool the flask with ice-water and crystal should be