Quiz1 - 1 carbonyl(C=O stretch 2 OH stretch 3 aromatic or...

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Attempt 1 Written: Jan 20, 2010 4:05 PM - Jan 20, 2010 4:45 PM Submission View Your quiz has been submitted successfully.Question 1 1 / 1 point Match the following structures of the active components of commercial analgesics with their names:__4__ __5__ __2__ __1__ __3__ 1. acetylsalicylic acid 2. acetaminophen 3. ibuprofen 4. salicylamide 5. caffeine Question 2 1 / 1 point Infrared spectroscopy is a new spectroscopic technique you will be learning in lab. As with most techniques, it is very useful to know some of the absorption values. Using the table of infrared peak frequencies in your techniques manual (or in your organic chemistry textbook), match the following IR absorptions with the functional groups they denote:__2__ 2500-3300 cm-1, broad __4__ 2900-3000 cm-1, sharp __3__ 3000-3100 cm-1, sharp __1__ 1650-1800 cm-1, strong __5__ near 1650 cm-1, weak but sharp
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Unformatted text preview: 1. carbonyl (C=O) stretch 2. OH stretch 3. aromatic or vinyl H stretch 4. aliphatic H stretch 5. vinyl (C=C) stretch View Feedback Question 3 1 / 1 point A certain very polar amino acid has an Rf = 0.3 when eluted with pure hexanes (a non-polar solvent) on silica gel. If the same amino acid is chromatographed with 20% ethyl acetate in hexanes (a much more polar solvent mixture), what will happen to the Rf? 1) The Rf will still be 0.3. 2) The Rf will be less than 0.3. 3) The Rf will be greater than 0.3. 4) None of the above. View Feedback Question 4 1 / 1 point Match the following structures of functional group to the correct name. "R" means any hydrocarbon group, i.e. only C and H.__5__ R-CO-NH2 __2__ R-OH __3__ R-O-R __1__ R-COOH __4__ R-CH=CH-R 1. carboxylic acid 2. alcohol 3. ether 4. alkene 5. amide...
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Quiz1 - 1 carbonyl(C=O stretch 2 OH stretch 3 aromatic or...

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