Olmstead_Prac_Soln_Final_Spring_2007

Olmstead_Prac_Soln_Final_Spring_2007 - Pmticc Final...

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Unformatted text preview: Pmticc Final Exnmnflhcm 2C WHEEL“? Prufesmr Dlmlcnd FiIZ'ITlE‘lilTliitLL‘!r USEFUL MORMATION is givcn on the last 1 pages of this claim. Mulljnlcchclccjpincnchfiirclccncmmr. ER’JJ‘IHHA (with? 1. Gina]: 10;.[51430-55) mlc=fl0fl:[flfl'l infill-£611! Ff AM- .' vcrnll unit! uflhc mimia {QM-I J _ ' "f. : G-fiflé ,.,"*2’-Mf H g 9+ (J!) = I; ’3- ;crii"=-: rd) —1 Timid n .6:er = ‘frw {cl 0 ‘fc‘i‘AJ-‘H mic. :5.va :g’i- r I, g 1‘? pl 1.4 new “Liz Flirt , 2. Ccnaidcr thc following rcncfinn: ZNxfltg] —- INfig) + 03(3) Givcn that rEIc = #11410]. i - 3.4 x lfl‘ls". and nut infial concentration urmo is tun M. calculnic than cnmcnn'ttlicn of N10 remaining nflc-r 3.0 min, j 1?“ Mir-1min] : 1312+ + in My. 5L - {Lle . {cgnjnM "—‘ f~$.fi’¥ifi'f;¢-"’}{JE'F#}i!!!” 5‘5 idlilfl'iM 11$ é-lefl: {HE {E} 0.54M = fl}: 3&5 644415: a .11? 3. ThcrcstcIawfmflmdmgmprnccssflflfl+fiiy4mflfflirf W {a} Ram—mm gin mt 4-{4rl'ii-{ah' lit-Hr left-Liti- ‘ 3P“ . R = - n —-————u—r- m - g, flnfiffijllo] _.L-Y.{'J'F1L£-It f}. r? fifi'i"ff":i}f:LJLL til Rnlc=hffifll —ia[N;fl]{fi] {{4de MC dMi‘l-HKI at}: J -‘ {Bl [lim‘tpnssiblctosai Aer Mai/i..ch 21,“, gig/3:: ctr-ms: Wu H4 cigar-thud x. ,4. tuning 4. Acfivaiicn cncrgy l'cra {ml-and reactinnicdcfincdas '- [a] Thcdiflirrmccbcttmnthccncrgycfthcprndmlscndrcactants [b] Mmmdfifmmmmcmfimmnmnfmiunmflmmnrynflhc {c} minimum tntnl ltinctic civic-g}.r than; molcculcs must bring In their ccllisicns for c in! mint: In occur {d} The: mull kinetic my ni'mulccttlcs in. collisiccc [c] 'i'ltc tctal kincficcncrgycfmnlcculcsin asystcm 5. In the margin“ mack”; + Him} —p mmaq} + HEIqu Ihc concentration cfthc mutant “W llflfifigJMInflfidfil Min 35 sec. Wisthcavcrcgcmlicnfrcacfinnnucr this inlcnral‘.’ 2"" 3w 1-54“ W5 J tié‘li’ff': _- r n- 0.55.6.2 {bl 1.54xlll4mcles FIFE-£4 ’ fig; 7" ; “ll/.5; c_ _ _._- {c} 1.54x1c-‘m1m A 52...! .4 I d 0.015“! -4; - {c} 0.13154 Ms 5. Haw many prntcnr. and nctttt'nns. rcspcclivcly. arc thcrc in I“1‘? {a} lifi, 53 12.2? 53 WW E3 {E1 £15953 :- 75M—am 4bsn (as) 1'. The decayr constant for strontimn—90 is 0.0247 years“. How many grams of strontium-90 remain if 10.0gdecayforexacfly75yearswwf _}_£4. 1,,“ )VO 5 Lara W = (a) 0.143 _ (b 0.00329»; =(# 0. 52473 W75 gr) 7* m /0,0 _ “573 = —/.€52 + 2,30; (d) 0.20g = 0. (+5} 6") 63-43 Mar, ,57 M A57 0;? 19/2.— 0:Co‘?%,gl¢17tj”: ‘25? M 75/23» < 3 WM 8. The nuclear equation for the disintegration of lip-237 produces Pa- 33. What other particle is mu Irv- phaparficle 237M ___> .153};.' .71. :Ha neutron (c) beta particle 98 P a! I (d) Proton (e) positron 9. In the 232Th decay series, the product is mPl). How many a and [3‘ particles must be emitted overall? : 4 and6|3 a. 168' ,J 63m” 9510+“ ——=7 gle (90(pr a sens Afi=? ' =é%“*i€ o. \ __ - " (e)cannotbedetermined 5%? ‘ 7‘4 -_- 34+ 0 __ 7-‘1‘ m. —‘i ' 8‘ 10. How many unpaired electronsarepredicted for [Mn(CN)5]“"}v I 0 * ' 3-"? 5 l W m Mn J yL Mom W _ 2 WW pew-Ma _) (d) 3 -— -— (e) 5 it Q .1. ll. How long will it taketodeposil 0.00235 moles of goldbyelectrolysis of KAuCMaq) usinga r currentofO.2l4 amperes? W he )0“ ma find/‘f' 2 first} (a) 106mm [4,903+ 1+ 35" .47 WO(W MW ) mr ' 03%;; 703$ t: 74%]: _._ @90135mMEEQG55‘00fiZM/VO 53.0m 9, 124 6/4, (c) 26.5mm I . . : 5/8234, >< Law = 53.04% 904 12. Given: MnOJaq) + mag) + Cl'(uq) —» an‘Iaq) + (312(3) + 1110(1) If the coefficient of Mn04' in the balanced equation is 2, how many electrons are transferred in - 7 +7 - Hr 13’” Adz/:04 Mn” 0:) s L—A-r'“ 13. The analysis for iron is normally.r done by titration with pennanganate. Identify the oxidizing agent in the following equation: Mame-q] + 5 Fcfiaq} + a H' —} 5 Fawn} + oil-.11“; + 41-:1o + -7 iii iii-i EW+ wine—e” F“? PM” 1* "i’fii’c‘ d- 5:“ “‘ 5 $11) $105 Mnfi‘o'rso MAN-LU!” 4M cf oft-LKI‘I'---:’:Cs {a} re“ 5th Hf Maison—j Afraid LT. 14. These three mition metal atoma or ions might be t‘omd with electronic configurations haVing six. inf-electrons 3 1,: E; {a} or“, Mn", Fe“ (A’ J :95 .4 fl! 3 4* + 2+ 3 35:? fr” {it 4%.; m.“ é 3 }cfi+,or°,Pd’* EH} sold a (I,ch {e} Mitten-“tan” d a: a: r; We; 5foer Egan, {Post-Lei 4...: IS. The molecular geomelnr for CD: is f r [a] trigonel planar , "-5.— : (:1 :3 {a} irigonai hiyramidal 'C’ ‘— “‘1 e bent [d 1 linear e] lrigonal pyramidal in. Choose the incorrect answer. The rate ni'a chemical reaetioa [a] is often increased when the eoneentralion oi'one of the reactamts is increased [in] is den-mount on temperature may be increased by using a catalyst g) '11 be very rapid new activation energy is large e describes Ilie change in concentration ofa reactant or product with time For the following questions. it is necessary to show alI your work in order to obtain full cruiil for E t I [£111 1?. I4 poinLa} [3.] Draw all the isomers for the annexe owner complain [PLBrleNHgm and irientify them as either eis», transv. Circle anyI optical isomers. fir— 34:37, i ’l (effwu ML _ H N " Pf “If-I" El" " Pf“ P (if Am skip—ti! L-‘f 5 i " . iii-i Mus-1d 1‘1 Hm} My? View LL14 -—"'—'— 18. [4 points] Assuming that the loss of ability to recall what you studied for the 2C final is a first-order process with a half-life of 6.5 weeks, what percent of what you studied will you remember a year later? (Assume you never pick up the book again). M7 5 52 #4044 52-: g -3 6'5— '- 5‘”; : awe 039% 19. [15 points] Three experiments at constant temperature on the initial rates of reaction for the following reaction are tabulated below. N013) + 00(8) e mm + 002(3) Run [100210, M [0010, M Rate, Ms" 1 0.15 0.05 1.4 x104 2 0.30 0.05 5.6 x 10“ 3 0.15 0.30 1.4 x 10'3 a)Whatistherateiaw expression forthisreaction? 4. 4m -= A [7002'] b) Whatistheorderofthe reaction? ’2— . ‘ -3 -—l - 4-: c)Ca1cMmemevhueP::melu;deunjé:/Lm : Mona M4 = a 2K/0/2VM W [Wle (diam): 20. [10 points] The reaction given in Prob. 19 was studied at two elevated temperatmes to determine the activation energy, Ea. From the data given below, calculate the activation energy (give units). Experiment T, K Rate constantk, M's" 1 600 0.70 2 700 21.8 [1&9— EA. ##J A} fl /Q Tea) / i—l— lI-W‘F'L - £48 _— M ( M an)“ MOW? 803/41M’K” (a 7 _./ _ Ea: Adm/X8. MIM k, ’) r Ll OXMSIM I 2.39x;'5'-"/K" 2L [[2 guilds] Given 111: mm ufflhlufina—JS is 34.9639 11. {a} What is flu: mam dcfcnl for chlorhwfifi? (Exclude electrons fium this minuiatiun}. Give m 35d! #5”? (’memgn)rflrhmmm) ” gm = 35. 25%;“ WW [ELL/Mfr 35.2.“: — 3% “NS? = EILEEQSM WIMMWHMMEWinHmmmm ofchlorine—liflivmmiu. .L E um»? r(a.32§an2/fl.‘i“i£x main-1 5'?) :— YJEN’J-HITH- fiibtbfl'fi'fi Jig) M“‘ .— 514"??? #§;£L:'f"x LE4” WP *J'I..[_|11.L. . f j‘ gig/5E i-‘L :— %?Fx;fi_fi_ A [c] Caluflalulhchindingcmrgjrpm'mmlwnfmcflumfiifiiwmim ‘F‘Tié-LI ILL! Trivia-{.155 Hp: hflj A: .J [{l'uféw'vj vii-#Lc‘fjfl :. ff-jbgfijg/fl '11.“- .E-i’t EVIL 35 I1". LLQQe'E‘Hr-‘fl — 13? x Hf” I @wMé-Fm {filmcmmbiflfiingmgrinlpcrglmafchlorimfs. 1%.??? x m ""J' K a: . :92 :2 x m: 1,3"ng I mg! Ali-13.4” fl/fl-flw ,U 1" :31fo 22.{[2poinls}1hfoliuwiugmc¢lmfimhasheenpmpusad forihereanfiun ufH; with [Cl inlhegas plume: H;ng + lCIts] -> HI'Eg] + HCILg] Him) + lCIig] -—!~ 11(5) + HCng} [3] Writ I11: balanced aquafiun fox flu: overall traction Hiz’g) + QILIK?) -‘:r I; (3) 1' grim/i) {b}DonsthisrmfionhweanyimemediaI¢s?Hm.thamflmfl 194;; H—I (’3 3 [a]Ifihefimtslcpiasluwandflumnflmfimmmiawdnywexpmfmflmuwmll reaction? ,Mfc r,$f#lj[1c:7 23. [ll pointyr total—cam is worth 1 pie] Complete and balance the following mentions using net ionic equations. {f [Iii Nails} + H9915 1‘} If- .Qfier’431i fiH;0K1)-a; 2,124 r; )__ K m m + Clo-m 1. a: an —-—-—._ {e} A. solufion of zine nitrate is mixed will] a solution of sodium sulfide form a preeipole. FI-LHKEfJ '3' 51—51;) F“? EMS 4) {d} A precipitate of magnesium oxide is dissolved using hydroehlofie mid solution. Mgci'r’xij Hr sLHfl/eg) —=,;r «Mail/Q) 7W3 flé 24.[l5points]111efollmuingeloelroehemieai oelleanbEdeeen'heohytbeunbelnnoodeqmfion. CWT”) 4' Winn} + “(Eli—3* (31'3" [811+ 11{5}+H2WJ Ase-Indian mtflifliflg momma H1504 is inonebeakeraodasoimion of K] isinumther. A salthridgeisueedtojointbebeam. memmmmmoanmmmmmwm mmamlmmemmacmt {a}WritelhebalnneedhalfroaefionforflleanodeflmeK+md5041'omol’tl1elmlfreoofiou]. 217%; “3 —::~ Jim) + ze— ffixfmflrofiimt .xr-JLWZLffif‘fL‘EIL ARI “PK! [1:] Write the balanood balfreeotion for the embed: {leave [fiend 5043" out oflhe hall'reacfien}. H4H‘Lr’efij fl erGderfj-f (Eff-— a: iarfiir’ilz) :41 Word: {e} Write the eel] diagram. Pl" {4'}, l I}: (it) if}; agilim'if-I‘LF 1', fl it’ll-'33? gff'1/r‘9'.-’/levéj ...
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This note was uploaded on 04/15/2008 for the course CHE 2C taught by Professor Enderle during the Spring '08 term at UC Davis.

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