Midtermexam3 - Chemistry 124 Third Examination November 14,...

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Chemistry 124 Third Examination Name ________________ November 14, 2008 The exam budgets 50 minutes, but you may have 60 minutes to finish it. Good answers can fit in the space provided. 1. Over the past three and a half years the American Chemical Society has honored 181 different compounds as “Molecule of the Week.” This week (November 10, 2008) it belatedly honored L-(+)-Tartaric acid (shown in the figures to the right). A) (1.5 min) Give common names for three other forms (or configurational isomers) of tartaric acid with sharp melting points. B) (2 min) Write CIP priority numbers (1 is high) on the substituents of one of the stereogenic carbons in the ball-and-stick formula and label it as R or S. C) (1.5 min) Explain whether L-(+)-Tartaric acid should be denoted d- , or l- , or whether the designation is uncertain? D) (2 min) In the left margin draw the Fischer Projection of L-(+)-Tartaric acid. 2.
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Midtermexam3 - Chemistry 124 Third Examination November 14,...

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