ChemProcedure17

ChemProcedure17 - a. Should remain orange. 5. Add 4 drops...

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Karlo Natonton Chemistry Lab 154-41 Experiment 17: Aldehydes and Ketones Part A: Solubility of Aldehydes and Ketones in Water 1. Label 6 test tubes, A-F. 2. Place 1mL/20 drops of deionized water into each. 3. Add 1mL/20 drops of each into each test tube. a. Propanal b. 2-methylpropanal (isobutyraldehyde) c. Heptanal d. Glucose e. Propanone (acetone) f. 2-heptanone 4. Seal each tube and shake. 5. Observe solubility. Part B: The Aroma of Selected Aldehydes and Ketones 1. Check the aroma of each compound. a. Camphor b. Cinnamaldehyde c. Benzaldehyde d. Propanone e. Acetaldehyde f. Vanillin Part C: Chromic Acid Oxidation of Alcohols, Aldehydes, and Ketones 2. Label 5 test tubes, A-E. 3. Place 1mL/20 drops of reagent-grade acetone into each. 4. Add one drop of chromic acid to test tube A.
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Unformatted text preview: a. Should remain orange. 5. Add 4 drops of the following into each test tube. a. Propanone (Acetone) b. Ethanol (primary) c. 2-propanol (secondary) d. Propanal e. 2-heptanone 6. Add 1 drop of chromic acid to each. 7. Gently mix contents. 8. If negative/no reaction occurs, solution stays orange. Part D: Benedict Test 1. Boil water in a 400mL beaker. 2. Label 5 test tubes , A-E. 3. Place 2mL/40 drops of Benedict reagent into each. 4. Add 1mL/20 drops of the following to each. a. Pure water (control) b. Ethanol c. Propanal d. Glucose e. Propanone 5. Seal test tubes and mix. 6. Place in boiling water for 10 minutes. 7. Colored precipitate indicates a positive test....
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This note was uploaded on 04/18/2011 for the course CHEM 153 taught by Professor Durham during the Fall '10 term at Saint Louis.

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ChemProcedure17 - a. Should remain orange. 5. Add 4 drops...

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