CHM 132 - Exam 1 - 2003

CHM 132 - Exam 1 - 2003 - Chemistry 132 Hour Examination 1...

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Chemistry 132 Hour Examination 1 February 13, 2003 Name ( PRINT) ___________________________ Student number____________________________ Workshop Leader___________________________ There are four questions on this exam. You have up to 90 minutes to work this exam. Please be sure that you have a complete exam package. Please work exam problems on the pages provided. Show your work neatly and circle your answers. Give units for all answers requiring them. If you need additional space to complete a problem, please tell us where to look for your solution. Total (100 points) Score 1. (30 points)_____________ 2. (25 points)_____________ 3. (20 points)_____________ 4. (25 points)_____________
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Name______________________________ 1. (30 points) Oxidation of fatty acids in tissues provides the heat required to sustain animals that hibernate, for example, polar bears. A particular such substance is arachidonic acid, C 20 H 32 O 2 . A 1.00 g sample of arachidonic acid is observed to liberate 42.0 kJ in its oxidation to CO 2 and H 2 O. (a) (6 points) Write the balanced chemical reaction corresponding to this oxidation process. (b) (12 points) 70% of the reaction enthalpy change is available to raise the bear’s temperature. Calculate the mass of arachidonic acid that must undergo oxidation in order to
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This test prep was uploaded on 04/17/2008 for the course CHM 131 taught by Professor Krugh during the Fall '04 term at Rochester.

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CHM 132 - Exam 1 - 2003 - Chemistry 132 Hour Examination 1...

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