Functional groups and nomenclature 30 points a for

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Unformatted text preview: lam Chemistry 2510 Autumn 2012 SCORING PAGE There are no exam questions on this page Section 1 2 3 4 5 6 7 8 9 Extra Credit Total Points Possible Your Score 30 10 30 18 15 40 18 20 19 12 200 2/13 Points/Page = Callam Chemistry 2510 Autumn 2012 Part 1. Functional Groups and Nomenclature. (30 points) (a) For each of the molecules below write the name of the major functional group present on the line below each structure. (1 point each for a total of 12 points) OH O N O N H2N N OH O O O O OH N H O O NH2 O O O O O O O (b) For each of the following pairs of molecules identify them as one of the following: constitutional isomers (I), same molecule (S), enantiomers (E), diastereomers (D), or none of the above (N). (3 points each for 12 points) (a) H OH D CH2CH3 OH Br Br OH H D CH2CH3 (c) CH3 Cl H H3C H OH (d) (b) OH OH OH OH (c) For each of the following structures provide the IUPAC name. (2 points each for a total of 6 points) H H H3C (CH3)2C(CH2CH2CH3)2 H H 3/13 Points/Page = Cl Callam Chemistry 2510 Autumn 2012 Part 2. Molecular Formula, Acidity and Functional Groups. (10 points) (a) There are only four constitutional isomers with molecular formula C4H9NO2that contain a nitro group (- NO2). Three of these isomers have similar pKa values, while the fourth isomers has a much larger pKa value. Draw all four isomers of C4H9NO2 in skeletal form and identify the isomer with the highest pKa. (10 points)...
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