Midterm+1+Answer+Key

Midterm+1+Answer+Key - Chemistry 3A Summer 2011 First...

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Chemistry 3A - Summer 2011 First Midterm - July 8, 2011 Dr. MaryAnn Robak Your full signature t<~'f Page 1 of 10 Print your full name. ---:-_--::-:'__ =- - _ (Last Name, First Name, Middle) Your 510 _ This exam has 10 pages; make sure that you have them all. We will only grade answers that are in the designated spaces; please do your scratch work on the backs of pages. Write only one answer to each problem; multiple answers will receive no credit, even if one of them is correct. Note: This examination runs for a total of 120 minutes. Please write legibly; ambiguous or illegible answers will receive no credit. Partial Periodic Table II III IV V VI VII VIII H He Li Be B C N 0 F Ne Na Mg AI Si P S CI Ar K Ca Ga Ge As Se Br Kr Rb Sr In Sn Sb Te Xe Change in free energy for select cyclohexane substituents upon chair-flip conformational change (kcallmol): H 0 Me 1.70 Et 1.75 iPr 2.20 tBu 5 OH 0.94 Do Not Write in this Box: 1. ( 12 ) 2. ( 13 ) 3. ( 13 ) 4. ( 11 ) 5. ( 10) 6. ( 8 ) 7. (9 ) 8. ( 12 ) 9. ( 12 ) Total (100)
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Nomenclature . ) 1. ('2 ~ 0,'(\ ~ ea.c'" 1\0 p ar h'~\ e.red ,1- A. Provide a systematic name for the following tom pounds. Use common names for any branched substituents. There will be NO partial credit for this problem. Avoid careless errors by checking over your answers. CI CI /'-. ..AA/ci , ~ b, T / B. Draw a structure for each of the following names. For cycloalkanes use flat rings. For all others use bond-line notation. 2-cyclopropyl-3-iodopentane bicyclo[1.1.3]heptane 1-tert -butyl-1 ,2,2-trimethylcyclobutane
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Molecular Orbitals of Carbon Dioxide 2. A. Construct a molecular orbital diagram for carbon dioxide (OCO) using the following guidelines and labeling schemes. Be sure to include everything asked for below. (II pt".) Assume the carbon is SP hybridized and the oxygens are each Sp2 hybridized The relative energy levels for carbon and oxygen are provided below Indicate the relative
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Midterm+1+Answer+Key - Chemistry 3A Summer 2011 First...

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