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exam1 sp09 key

exam1 sp09 key - 1 CH223 Spring 2009 Name KEY Exam 1...

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Unformatted text preview: 1 CH223, Spring 2009 Name_______ KEY _______________ Exam 1 February 2, 2008 Read the test over carefully. The questions are in no particular order (i.e., they do not progress from easy to hard, nor are they in chronological order). If you are unsure of an answer, move on and then come back to it. Sometimes answering one question will help you in answering another. You may use the periodic table displayed on the wall of the classroom. Best of luck to all. 1 H NMR Chemical Shifts Saturated alkane protons 0.2 – 2.0 ppm CHCl 3 ≈ 7.3 ppm Protons next to a carbonyl 2.0 – 2.5 ppm –CHCl 2 ≈ 5.3 ppm Alkyne protons 1.8 – 2.9 ppm –CH 2 Cl ≈ 3.1 ppm Benzylic protons 2.3 – 2.8 ppm Protons next to an alcohol or ether oxygen 4.5 – 6.5 ppm Alkene (double bonds) protons 4.5 – 7.0 ppm Aromatic protons 6.5 – 8.5 ppm Aldehyde proton 9.0 –10.5 ppm Alcohol protons (typically does not show coupling) 0.5 – 8.0 ppm Carboxylic acid 10 – 14 ppm (s) = singlet, (d) = doublet, (t) = triplet, (q) = quartet, (quin) = quintet, (sex) = sextet, (sep) = septet, (oct) =...
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exam1 sp09 key - 1 CH223 Spring 2009 Name KEY Exam 1...

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