Spring_08_322B_PRACFINAL

Spring_08_322B_PRACFINAL - PRACTICE FINAL 1. Chem. 322b...

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1 PRACTICE FINAL Chem. 322b Spring 2008 1. Circle and name the functional groups. Use the most specific terms in each case. a. N N b. c. CH 3 CH 3 O t-BuOC NHCH 3 O N=C=N d. O O O NH e. f. O N H O O O g. N h. R 2 N i. O O j. R N=C=O 2. Describe the most accurate relationship between the following pairs: a. OH and O b. C O H 2 N NH 2 and C O H 2 N NH c. O and O d. CHO H HO H OH H OH CHO and CHO HO H HO H OH H CHO
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N HN O H 2 N and N N OH H 2 N N N O H 2 N and N N OH H 2 N 1 2 3 4 ~ ~ ~ ~ e. f. N H N N H N N H N N H N H N N NH 2 and N N NH N H N NH 2 and N H N NH 2 5 6 7 8 ~ ~ ~ ~ g. h. H O O N N H N H N i. CO 2 H H H OH OH CO 2 H and CO 2 H H HO OH H CO 2 H j. PhNHC = N Ph and PhNHCNHPh OH O k. N H O N O and H l. N N H O and OH m. H 2 NCHCO 2 H and H 3 NCHCO 2 CH 3 CH 3 The pKa values of cysteine (HSCH 2 CHCO 2 ) are 1.7, 8.3 and 10.8. Write the predominant structure of this amino acid at pH values of a. pH = 1.0; b. pH = 12.0; c. pH = 9.0; d. pH = 3.0 3. NH
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Spring_08_322B_PRACFINAL - PRACTICE FINAL 1. Chem. 322b...

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