151F2007 Pset9

151F2007 Pset9 - 1 Given the following molecules and mass...

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NAME_________________________________ Recitation Section:________________________ Chem 151 Fall 2007 Problem Set 9 Due at the beginning of your next recitation Instructions: Show work where appropriate. You will be graded based on showing your work (where appropriate), and handing it in at the beginning of recitation. If you will be unable to hand in homework due to an absence at recitation, you must email Meghan ahead of time to let her know and make arrangements. If you turn in a blank homework assignment or fail to turn in an assignment, you will get a 0 for that assignment. You may work together on homework, but if you are caught copying someone else’s answers or work you will get a 0 for that assignment. Repeat copying offenses will result in you being reported to the Academic Integrity Council.
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Unformatted text preview: 1. Given the following molecules and mass spec data, give the structures of the molecular pieces responsible for the listed peaks. a. Justify the following peaks: 31, 43, 60, 73 O H HO H HO H OH OH H H OH b. Justify the following peaks: 130, 128, 100, 70 OH Cl c. Justify the following peaks: 85, 56, 55, 41, 28 O 2. Each of the three molecules below gives the same IR and mass spectral data, but have distinctly different carbon and hydrogen NMRs. Explain why this is so and determine which molecule gives the NMR spectra shown. OH OH OH Br Br Br 4-bromophenol 3-bromophenol 2-bromophenol 1 2 3 4 5 6 7 8 PPM 20 40 60 80 100 120 140 160 PPM...
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This note was uploaded on 05/31/2009 for the course CHEM 151 taught by Professor Mccaferty during the Fall '08 term at Duke.

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151F2007 Pset9 - 1 Given the following molecules and mass...

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