Fall 05. Exam3 key

Fall 05. Exam3 key - Chemistry 2101 Midterm #3 Dec. 9, 2005...

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Unformatted text preview: Chemistry 2101 Midterm #3 Dec. 9, 2005 Student #: 1. /7 2 /5 3. /9 4. /6 5 /7 6 /6 Total: /40 Page 1 of 8 1) (7 points) Label each of the transitions shown on the Jablonski Diagram below. g i i T1 “*0”? ! I 5 " ransitiohe E \g, _f j 5 g 5 'f 7 Ground state 2: I:IQ"EVQF(‘IC-\ CGQUQQECR 'Lp('c-.X€cnc—\ (Zak:- CHCA 5: :\ LAC; FQSCQ a a; s: <2» \UQ- 7: PM 7 bag-ha Ce. SCQOCQ- Page 2 of 8 3) (9 Points) In class we discussed three major contributors to peak broadening in chromatography. Briefly describe how each of the phenomena listed below contribute to peak broadening and state how each is affected by the mobile phase flow rate. a) Multiple Paths: _ I “I R \ _ _A\J\Q.\LII 12,3 PcAA/t‘i CXtC1AC-Q(ani 9L3 c3; \\Q'¥Ckil Qr'Qn-i 4-1 WS -’\73 (20.an Qinch 0Q LL11; Goth-MA QLJQfl X1493 Stile/M} JVL’LQF “sari/UL Clip/manic in M42. Scivioflcrs fin-ts _%OM{CQ bfggciigflf/zj \ i5 ‘LOC/QQPQOCDQQ (Vfoioiia .Ui-Qioc SQ... bloc}; ("Give ,. b) Longitudinal Diffusion: gfco éLQfl'lr/W <3 (32iqu Choc-goon MGUQfl/wflsl' QR: C-mo\ a .. a {in MOULQ , L003: imA $rooéimioc> “is imporin r“ Xr--(u<:ir\(;\ \lVaoLbliiQ. PIMQSQ COX Q .. I c) Mass Transfer: K 9 . , . _ i L. m l/ 7 1/1/14 a. S'irc-Xr-ion or {1/}! 1:9- Wm Arrears-Ever i. ii 3. Ala gala aim mi (SEAT-foier a? QM CS1). is c,_\::-;L \l m j? in 1' Or” __'1C“)Q..Ii jog * ,5 mgr/'5; / Cask LQ_ Zack? 1: (AFLQLZQKI Lorilka PLVCSQS ‘L—rt" l: @{fwnifib We“; papaya/lax Am la m I. Q 0.39. Cw; (“Cl 9—; Page 4 of 8 ...
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This note was uploaded on 10/02/2011 for the course CHEM 2101 taught by Professor Bulman during the Spring '11 term at Minnesota.

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Fall 05. Exam3 key - Chemistry 2101 Midterm #3 Dec. 9, 2005...

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