Recitation__1_Aug_26_ANSWERS - Organic Recitation#1...

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Organic Recitation #1 August 26, 2007 Chemistry 357 - Qatar Organic Chemistry for the Life Sciences Recitation Exercises– ANSWER KEY 1. Give the formal charge on each atom and the net charge on each species in the following structures. NOTE: All valence electrons are shown. Cl O O O O -1 -1 -1 -1 +3 Net charge: __ -1 ___ O C C H O H 3 C H 0 0 0 0 -1 Net charge: ___ -1 _____ 0 0 0 0 -1 C C C C C C N O O H H H H H -1 0 +1 +1 Net charge: ___ 0 _____ 2. For each of the molecular structures shown below, provide the correct molecular formula and units of unsaturation. Molecular Formula: C 11 H 24 Units of Unsaturation: 0 O Molecular Formula: C 13 H 16 O Units of Unsaturation: 6 O OH Molecular Formula: C 9 H 16 O 2 Units of Unsaturation: 2 O H H 2 N Molecular Formula: C 11 H 11 NO Units of Unsaturation: 7
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3. A) The following reaction is one often used in general chemistry when discussing acid-base chemistry. Complete the reaction by providing ALL product species. Show mechanistic “curved arrows” to illustrate the flow of electrons during the course of the chemical transformation.
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