CHM 201C Fall 2008 Answer Key

CHM 201C Fall 2008 Answer Key - OM - PR EME D41 1.C P - PR...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: OM - PR EME D41 1.C P - PR EME D41 1.C OM O rganicChemistryI (CHM201C) Examination The First In-Class 1.C OM 29,2008 September A"5q/<"k 7 - PR EME D41 Theexamwill beginat 10:10AM andendat 11:00PM. PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM Directions: (1) Please not start the test till 10:10AM. Instead, pleasestart bubblingin the do for bubble if you want your scantron your name,studentID number,and the consent grade posted your I.D. number. by (2) Please on accordingly the instructiongiven on it. to recordyour answers the scantron papers attached at that be It is stronglyrecommended the answers workedout on scratch and to the endof this examination thentransferred the scantron. (3) Periodic Table and Schematic Energy Diagram are provided at the end of this examination. OM - PR EME D41 1.C P D41 1.C OM Q uestions (c) (b) 14 15 s @ 1.C 7 OM (a) - PR EME 1. (5 points). How many valence electronsdoesa neutral nitrogen atom have? (b) - PR EME D41 2. (5 points). How many valenceelectronsdoesa neutral iodine atom have? (c) r27 (d) 17 1.C OM s3 - PR EME D41 for the configuration O? 3. (5 points). Which diagramshows ground-state electronic COM (a) High - PR EME D4 11. High 4s 3p, 3p, 3p, 3px 3pv 3p. 3s - PR EME D4 11. 3p" 3pt 3Pt High 4S COM 4S @ (c) tllt 2P* 2Pv 2W ED4 1s | 1 3t | 2p. rW 2W , I tt 7 l 1S 11. Low - PR EM ED4 pKa proton? 4. (5 points). Whatis the approximate valueof the indicated 11. COM n6Hr- ED4 ( (a)) <o -s - PR EM (b) (c) -10 (d) -ls 11. COM 5. (5 points).What is the approximatepKa value of the indicated proton? COM R'c'oH- - PR EM ED4 o tl < o ( tul / -5 Yl (c) -10 - PR EM ED4 11. (a) (d) -15 MPRE M ED4 11. COM 6. (5 points). What is the approximatepKa value of the indicated proton? *HzO PRE MED 411 .CO (a) <0 (b) -s (c) -10 rr | 2s 1s Low COM Low rl | lt - PR EM 1 /l t ll 2s 11. 2s rr |l COM 1lI t 3s l rr | l I I 'P, ' W ' w OM - PR EME D41 1.C P D41 1.C OM is for 7. (5 points). WhichLewis structure correct CHENHz? /a\ (d) /nt \\"),/ aa :H:b':i.i:H aa aa H aa H H:b':iri:n HH aa J1 H:C::N:H aa aa aa H HH H D41 H - PR EME H:c::'lri:H \v, H OM H 1.C \d/ - PR EME 8. (5 points). What is the hybridtzation of the indicated atom? OM cHscH2oH \_/ sp3 COM sp2 ( t"l j (b) sp (O p 11. (a) - PR EME D41 1.C A - PR EME D4 9. (5 points). What is the formal chargeof the oxygen atom? COM J1 (a) -1 - PR EME D4 11. H:O.: H (b) o (d) +2 11. COM @ +r - PR EM ED4 10. (5 points). What is the formal chargeof the carbonatom? COM H :C : H 11. COM - PR EM ED4 11. COM - PR EM ED4 11. i{- n - PR EM ED4 -trimethylpentane(c) 2,2-dimethyli (a) 2,4,4-timethylpentane sohexane \(b) |,2,4 -trimethylisopentanev (d) 1,l, 1 11. COM 12.(5 points).Please choose correctskeletal the stucturefor 2-ethyl-1-pentanol. ED4 (a) - PR EM a PRE MED 411 .CO MPRE M ED4 11. COM ^- OH (b) ./ -(-^-,,oH @ ./ -^-.l--oH (d) f ) NHz OM - PR EME D41 1.C P - PR EME a,i :,,,[o* (d) -l"j- OM I D41 (b) (a) 1.C ./\..oH D41 -) 1.C OM 13. (5 points). Pleasechoosethe correct skeletalstructurefor isopropyl alcohol (common n ame). - PR EME OH - PR EME < D41 1.C OM 14. (5 points). Pleasechoosethe list that is in order of increasingpKa value of the most acidic hydrogen atom within the molecule (i.e. the smallestpKa value is listed first). cH3cH3 < HC=CH (c) HC=CH < cH3cH3 < cH3cH3 COM 11. (b) - PR EME D4 COM ( ( a) Hc=cH ) \:/ < - PR EME D4 11. (d) H2C=CH 2 11. COM 15. (5 points). Pleasechoosethe list that is in order of increasingstability (i.e. the least stableone is listed first). - PR EM ED4 \ (a)y < Cf < Br- < I- (b) I- < Br- < Cl- < F- (c) Br- < Cl- < I- < F- (d) Cl- < Br- < F- < I- 11. COM 16. (5 points). How many secondarycarbonsdoesthe following compound have? ED4 I (a) - PR EM -A--^-. (b)6 ED4 11. COM 3 @2 (d) s COM - PR EM 17. (5 points).Which of the followingpairshasthehigherboilingpoint: l-butanolor lpentanol? (a) (9 1-pentanol (c) bothboiling pointsare same. - PR EM ED4 11. l-butanol COM isS moststable? 18. (5 points).Which of the following conformers 11. (a) ED4 H3CCH3 PRE MED 411 .CO MPRE M ED4 11. COM - PR EM A 'ffir. gH. V n"1.a"t' n.ci?{H Hsc (c) gH. trty'" H.cfin Hgc t (d) gH. Hgc)4y,cHs H,cf(H PRE MED 411 .CO MPRE M ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EM ED4 11. COM - PR EME D4 11. COM - PR EME D4 11. COM - PR EME D41 1.C OM - PR EME D41 1.C OM (a) D41 (b) - PR EME 1.C OM - PR EME D41 1.C OM P represents cls isomer? a 19.(5 points).Which of the following structure @ 20. (5 points). Pleasechoosethe most stableconformer of the following molecule: (d) ...
View Full Document

This note was uploaded on 10/06/2011 for the course CHM 201T taught by Professor Takanaka during the Fall '08 term at University of Central Florida.

Ask a homework question - tutors are online