VanKoppen_PracticeFinal3

VanKoppen_PracticeFinal3 - Final Exam 1. White Version...

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Final Exam White Version Chem. 1C 2005 1 1. Cholesterol has the structure shown below. a) (5 pts) What is the molecular formula for Cholesterol? b) (6 pts) Circle all the chiral carbons in cholesterol. 2. (4 pts) The DNA double helix contains two sugar-phosphate backbones, with a base attached to each sugar. What is the dominant intermolecular force between the bases in the DNA strands? 3. (4 pts) What types of intermolecular forces are present in ketones? 4. (4 pts) What types of intermolecular forces are present in alcohols? 5. (6 pts) Use table I on the information page to predict the boiling point (± 3 o C) for each of the following. a) heptane b) ethanol c) 2-octanone 6. (6 pts) Draw the structure for the tripeptide, Val-Ala-Cys, in that order. CH 3 CH 3 CH 3 CH 3 CH 3
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Final Exam White Version Chem. 1C 2005 2 7. (6 pts) Aqueous solutions of [Cr(H 2 O) 4 Cl 2 ]Cl, [Cr(H 2 O) 6 ]Cl 3 , and [Cr(H 2 O) 5 Cl]Cl 2 , are colored. One of the solutions is blue-green, one is green and one is violet. Based on the spectrochemical series, assign the solution color of each complex. Color of Light Absorbed Color of Solution [Cr(H 2 O) 4 Cl 2 ]Cl (aq) [Cr(H 2 O) 6 ]Cl 3 (aq) [Cr(H 2 O) 5 Cl]Cl 2 (aq) 8. (4 pts) Give the systematic name for the following compound. [Cr(H 2 O) 4 Cl 2 ]Cl 9. (12 pts) An ice cube tray contains enough water at 22.0 o C to make 18 ice cubes, each of which has a mass of 30.0 g.
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VanKoppen_PracticeFinal3 - Final Exam 1. White Version...

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