14C_f09_finalA_key

14C_f09_finalA_key - Chemistry 14C Fall 2009 Final Exam...

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Chemistry 14C Fall 2009 Final Exam Part A Solutions Page 1 Statistics : High score, average and low score will be posted on the course web site after exam grading is complete. The exam is ready to be picked up when these numbers are posted. A note about exam keys : The answers presented here may be significantly longer than expected from a student taking the exam. An exam key serves not only to reveal what was expected, but to instruct you as well. To see the projected course grade cutoffs, consult the grading scale on the Chem 14C course web page. The final grade cutoffs cannot be determined until after the final exam has been graded. 1. Greatest intermolecular attractive forces: TAME I can tell that this oxygenate has the greatest intermolecular attractive forces because it has the highest boiling point. 2. Dipole-dipole and London forces 3. Anion-cation 4. A significant and specific reason that the boiling point of ethanol is higher than the boing point of methanol is ethanol has a larger surface area than methanol, and therefore stronger London forces.
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