{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

FinalSpring1997

FinalSpring1997 - lb FINAL EXAM CHEM 2364 2453 student name...

Info icon This preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 10
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
Image of page 13

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 14
Image of page 15
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: lb FINAL EXAM. CHEM 2364/ 2453 student name 4/ Z 9/ 9 7 Dr. WEINGARTEN TA name =~ ‘l. a. balance the equation b. calculate the theoretical yield of the product (in gramg) c. calculate the gercent actual yield of the product d. circle the limitihg reagent 6. SHOW YOUR WORK! BOX AND LABEL YOUR ANSWERS! Z I; o A NH-g -CH3 , 0 Han + CH:‘ -3 \ ——r NH + H Cl - 0' Cl-i3 -é . NH: 45 NH‘E'CHa 11.39 24.99 22.1 9 actual yield FINAL EXAM, CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN TA name is. 2. 3. Give the iUPAC name for the following structure CHa‘ ,CJ'Ia CH I CH3 a1: /CH\ ,cna /CH /C "C\ . CH3 'CH2 H H b. In the Aldol condensation reaction you carried out in the laboratory had you used insufficient benzaldehyde you might have isolated a byproduct named 4-phenyl-3-buten-2-one. Draw its structure. l, i ! FINAL EXAM, CHEM 2364/2463 student name 4/ 29/ 97 Dr. WEINGARTEN TA name ‘~ 3. Describe the best method for separating gram quantities of the foliowing mixtures into their components. a. CHaCONH OZNQNPCOCI-ia OZN minor amount wwrmwmzmw.n‘wxmv‘ tn"- Eh‘. Ii-T'YJLJH 2‘ ~. it mm m-M‘-M-‘-"""" ‘ COgH 33'." LT‘VKW [Em i3 g?!ng.m..m_‘11§ilifimm.mwnw W . Q-!NME‘.W ummw't.mammmmmfl'mamammsr‘mwwnw FINAL EXAM. CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN TA name 4. Describe the best method for separating gram quantities of the following mixtures into their components. C. NHCHg OCH3 E E g s CH3 0 CH3 'él 'OH QHa FINAL EXAM. CHEM 2364/2463 student name... 4/29l97 Dr. WEINGARTEN ‘5 5_ TA name Match the NMR diagram with the correct molecular structure. U A' I" o CmccHchs H. CH3\ /CH-B' [3 CH3 FINAL EXAM, CHEM 2364/2463 student name 4/ 2 9/ 9 7 Dr. WEINGARTEN TA name "4 6. Sketch a reasonable proton NMR spectrum for the molecule below and identify each resonance. 0 CH3 cmilk/CH (III-CHg-Ll- —CH3 CH3 (I:Ha ~ “lulummanM-(Immm-rr u A A E E a P r: E E E E 3. i FINAL EXAM. CHEM 2364/2463 student name 4 I Z 9 l 9 7 Dr. WEINGARTEN . TA name ""7. Fill in each square with a P indicating a positive test or an N indicating a neative test. WWW?" FINAL EXAM, CHEM 2384/2463 student name— 4/29/97 Dr. WEINGARTEN R“ 8. TA name Devise a scheme to differentiate the four 'unknowns' shown below using only twg qualitative organic tests. 0 O O E; . 3: CH2 ,CH2 CH2 GHQ ma’g‘cé ‘cr-Ia CHs/ ‘cfiz ‘cHa CH3 ‘0’ CHa’ ‘cfiz “3+1 { FINAL mu, CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN TA name 9. a. Place these bases in order of decreasing basicity (strongest No. 1) NHCH.-, 3— 0 Cl Nl'CH a b. c. Na+ NH} 0 cream -NH -C-CH3 “_"_Wl\myv.qfi:nlivfl-‘Tyfirfiq I" warn-n 'In‘ a“, r W A “w A_ ._|.'v-"mu/ml."-nmmnn-I "in'nmm'n"WW-"V'er we‘- e. Cl'iaCHzflHCHs a. ceabd b. cdeab c. cedab d. edabc e. abced b. Place these aromatic compounds in order of decreasing ease of nitration (most easily nitrated No.1) 9H: CH2 Q N02 OzN A B C D E a. DACBE b. ADCBE c. ACDEB d. BADCE e. CABED o o O-A—CH; 3‘0""CH3 3' I . . G: g: ,. . E: g; E, E g. i \ FINAL EXAM. CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN L10. TA name In the Aldol condensation reaction you prepared a sample of dibenzalacetone. 3. Describe how you synthesized the product (what starting products. reagents and conditions did you use? This is not a theory question!) b. Describe how you purified your product. c. What characteristic did you measure to confirm the identity of the product? d. Suggest another method you might use to confirm the identity of your product and explain how the method confirms identity. . 10 FINAL EXAM. CHEM 2364/2463 student name 4/2919? Dr. WEINGARTEN 11. TA name In the Para Red experiment you combined the diazonium salt of p—nitroaniline with the sodium salt of Z-naphthol to produce an azo compound (Para Red). Draw the mechanism of that reaction including the cerrect structure for the product. 11 FINAL EXAM, CHEM 2364/2463 student name 4/29/97 DI’. WEINGARTEN “"12. TA name Propose a synthesis for the molecule drawn below using only starting materials from the list provided at the bottom of the page and readily available reagents. OE‘WO §§Bé5fo 12 ,mmmguwgg g E a E g a i f l FINAL EXAM. CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN “J13. TA name____._.__._ Propose a synthesis for the molecule drawn below using only starting materials from the list provided on page 12 and readily available reagents. 0 FINAL EXAM. CHEM 2364/2463 4/29/97 Dr. WEINGARTEN student name TA name "» 14. Compound A, C9H120, gives a positive Jones test and a negative Lucas test. The Jones test converts A to compound B. C9H100, (proton NMR of B shown below) which gives a positive Tollens test. Further treatment with the Jones reagent converts B to compound C, C9H1ooz. A,B or C on oxidation with KMnO4 and base yields terephthalic acid. Draw the structures of A, B. C and D. Hooc-OCOOH temphthaiic acid NMR of compound B j E i a g i i g i i E i i i 3 ; in mmmmmmm "r" mmmmmmmmm «"1 mmmmmmmmmmm "I mmmmm “anagram...— .... unrnumu-m—wn'ummn—oufummu'm-mw nnnnnnn mu- J 9 B ? 6 5 4 3 2 1 O 14 FINAL EXAM. CHEM 2364/2463 student name 4/29/97 Dr. WEINGARTEN [15. TA name A chiral compound A, C5H1002. on hydrolysis with aqueous acid yielded an achiral compound B. CHzoz. a sharp smelling liquid. and a chiral compound C. C4H100, a liquid which gave a positive test with the Jones reagent. The Jones reagent converted C to an achiral compound D, C4H30. Draw the structures of compounds A, B, C and D. 15 ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern