MidtermFall2000

MidtermFall2000 - CHEM 2364 Print your name KN— Print...

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Unformatted text preview: CHEM 2364 10/2/00 - ' Print your name , KN— Print your TA's name MM ‘ CHEM 2364 Organic Laboratory Midterm Examination October 2, 2000 Dr. Tamara N auman 'Dfiraotfiomgg l J ,. CODPEN Y©UR TEST UNTHE RYCGNE HAS A @CCDEW [553% Print yomr nanw and yomr Tceacchfing Aggfigtamtgg imam on awry paga CHEM 2364 10/2/00 Print your name , \Kx‘ Print your TA's name m Acetvlsali lic Acid and C M xplam the best chorce for a rec stalhzation solVent (use a solubility vs. temperature graph in your [sol = soluble; insol. = insoluble; T = temperature] - solvent caffeine solubilig hexane . insol. at all T chloroform very sol. at all T isopropanol sol. at high T and insol. at low T a) aromatic hydrocarbon, carboxylic acid, ether b) alcohol, aldehyde, aromatic hydrocarbon, ether c) alcohol, ether, d) aromatic hydr ketone, aromatic hydrocarbon ocarbon, carboxylic acid, ester e) alcohol, ketone, alkenes, ester CHEM 2364 10/2/00 . 5 Print your name \\\. Print your TA's name . . c, polarity in the blanks provided (most polar is #1 and least polar is #5). _ c) octane d) isopropanol e) chloroform CHEM 2364 10/2/00 Print your name a) 2,4-DNP;Tollen's b) 2,4~DNP; FeC13 c) N aI / acetone; Lucas; 2,4-DNP d)- 2,4-DNP; Brz; FeC13 e) none 12. (6 pts.) What qualitative analytical test(s) would give positive results with the following? /\/\Br 21) Nal/ acetone; AgNOs; Brz b) BIZ c) Lucas; NaI/ acetone d) Nal/ acetone e) none 13. (10 pts.) For Compounds A and B below, what is the result obtained with the ferric chloride (FeCl3) reagent and why (EXPLAIN)? %% Compound A Compound B CHEM 2364 10/2/00 , 0 Print your name Print your TA's t-Bu IChloride § name WWW CHEM 2364 10/2/00 ' 1 1 Print your name ' Print your TA's name n 19. (30 pts. total) The following reaction is the synthesis of a diamide: /COOH . /CONHCI-12CH3 _ . H2C\ + CH3CE‘12NH2 N ~ H2C\ ' ' ‘ + H20 COOH CONHCHZCH3 0.400 g 0.481 mL actual yield = 0.258 g (d = 0.689) Balance the equation. (A) (4 pts.) Balance the equation. (B) (5 pts.) What is the limiting reagent? CHEM 2364 10/2/00 Print your name \‘hx. Print your TA's name ...
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