Exam 1 Key 2010 - CHE :‘Il'].ll‘3'I'R"hrr 2211...

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Unformatted text preview: CHE :‘Il'].ll‘3'I'R"hrr 2211 Exam 1 SCORE February 3, 20H] Be sure to read each question carefully. Partial credit will be assigned where appropriate. 1 To receive fill] credit you must answer the question completely. Relax and good luck!! ' 2. 1. {lfl pts} Draw structures let" live constitutional isomers that share tlte formula CJHfiU. You do not need to indicate the specific bond geometries: simply provide each isomer’s general skeletal structure. 3- _ 4. t. i Vk are l1 4"; 6' T". 8. 9. III}. I l . IE. 13. Total: g ‘ul'lmgA [.“II'L- r: g . --\-_.|IF\.- A as 1 i=1; — Emil/III or ll—flwuH-Jfifnpvl 2 TEA-p fif- Il'fW-fi'l'ilr'r bl- IIII'A’MLEE-rr fill-"If! fiairL-I' {,0 3. {3 pts) Comploto tho Kokulo structure (Lo, writo mulliplo bonds. unshand eloolron pairs, and assignfammf charges whoro appropriate) for the following overall neutral molecule. Only o—bond frameworks are shown. H H H H H H H ‘ \C/ \C/ \C/ L Cl H/ \g/ \C/ \C/y \C/ \ie \ H r /\ H N ____H H H ‘- \C/ \ /\ H H H 4. (8 pts) Draw a detailed valence orbital sketch of the eentral carbon atom of earhon dioxide [C02] on the template provided below. Inelurie all of the HECBS$3IY orbitals and clearly label eaeh ofthom wifl: the appropriate orbital designation (ex. s, p, sp3 ete}. [Hint draw the Lewis diagram for C02 as your first step]: G——C——D Carbon Dioxide S. {4 pta) Name all of the highlighted functional groups in the molecule shown below: fi. {4 pie} Provide appropriate skeletal structures conforming to the Specifications indicated below: Draw a tertiaryr alcohol with the molecular formula C 5H|201 - Draw a secondaryr amine with the molecular formula Cal-I] EN: 1". (4 pts} Convert the following skeietal etruelure into its corresponding line‘hond structure that elemhr shows all inciuded atoms. You do not need to indicate specific 3—D geometry: 3. {r5 ple) Convert the following condensed structures into skeletal structures in the boxes provided below: mecHZCHz-CHia‘izmSFG‘IimaJCHzm'bWWZCHzCHJb (weEGGWGWWCWOEW{CH3}W{W3F2 9. (12 pts} Provide all of the appropriate resonance structures for the feliewing eernpeunds. You do net need te indicate electron movement tn answer this questien. Simply draw the appropriate skeletal structures: ll]. [6 ptsj Number the followingr compounds in order of increasing C—C bond length berm-seen carbons 2 and 3. (i = shortest and 4 = longest}. i 1&5 2% 1 2 a 4 5 1M5 B Considering the structure indicated 1«with a star above, Ll'Ie Carbon 1 — Carbon 3 sigma to} bond is formed by the overlap of what orbital typets}? lIiiltrbital Coneibuted by 5‘ lDrbital Contributed by 3 l[ff-arisen 2 Carbon 3 .11. {3 pts} List the hybridization ofeaeh atom indicated {straight arrow) and list the approximate bond angles indicated {curved arrow) in the spaces provided: a. {hybridization} b. {bond eagle} 12. (3 pts} Draw a three-dimensional Iiue~bond structure For 4rcifloro~2—butenaminc {see condensed structure below). Be sure to clearly,r indicate the appropriate bond geometry of" all carbon and nitrogen atoms using wedges and dashedt'straight lines where appropriate. Indicate the polarity ofbodt the (:41 and fitc C-C] bonds using a directional arrow as chI as partiai charge indicators. You do not need to indicate orbital geomctry surrounding the bromine atom. CICHECHCHCHEN H2 4~ch Ioro-E -b utena mine 13. {12 pts} This question has two parts: Part 1: Compiete the equations of the acid-base reaetiorts provided hetow. Part 2: For the first two reactions, iridioate in the box above the reaction arrows whether the reactants or the products are Favored at equilibriturt (pit;l values are provided on the test page of the exam}. ...
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This note was uploaded on 04/20/2010 for the course CHEM 12-636 taught by Professor Hubbard during the Spring '09 term at University of Georgia Athens.

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Exam 1 Key 2010 - CHE :‘Il'].ll‘3'I'R"hrr 2211...

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