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exam 4 solutions

exam 4 solutions - CHM 113 Exam 4 Arizona State University...

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Name: Section #: TA: CHM 113 Exam 4 Arizona State University Fall Semester Monday December 3, 2007 Dr. Ron Briggs Blue Form (Version 1) Mr. I.B. Key, IV
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Please readall the information on this page carefully. . Be sure to sit in the assigned area for your section. Ifyou do not know where this is, please see your T.A. Ifyou do not sit in the assigned area, your T.A. may mark you as absent. . Print and coale both ySg-aclq9 j.!dl!l!!g !!blg-D on the Scantron sheet. The affiliate lD is the second sequence of numbers on youl University ID card. It will completely fill the ID box on your Scantron form . . Write your name, section number, and TA name on the cover sheet ofyour exam booklet so we can retum it to you. When you are finished, turn in your Scantron and exam booklet to your TA. . IMPORTANT: Be sure the color in the upper left coner ofyour Scantron matches the color of your exan. lfitdoes not, yourexam will be graded with thewrong key. For most people, this is bad... . Use only a #2 pencil. Do notuse pens, crayons, motor oil, orgrapejuice. . Do all calculations on the exam pages. Do notmake any unnecessary marks on the answer sheet. . This examconsists of 25 multiple-choice questions worth 4 pointseach. Thereare 9 total Daees (including thecover sheets & periodic table). Make sule you have all the pages you'rc supposed to. . Choose the onc !9!]! answer to each ofthe questions and mark your selection on the Scantron sheet. Read all resDonses before makins a selection. Do not mark mor than one selection, Dr. Ror Briggs CHM I l3 (Fall '07)
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IDformatiotr that you may (or may not) lind useful: tinch.2.54cmq-Cp\nrATt(tt) iif =+s3.i"- lcal:4.184r . =(R,,) -j-- , I n,, = t.o96ttsxro'n-' 1000cat trcal tLat l, ' l.n'"". ni,,. ) '| - il.8,oc , 12 , _IQ'Q. L=hv K -'c 2rr.rs n :=::^ ^H:^,,,-=>ir^H;\ptoducx)-\[email protected]*'*r;==i2i]":"r{!ir." I ev ) .602 t ro-l9 J P^ = XAP"A ATr: Kr,m ATb = Kbm "=l+) RT = MRT PV: nRT PlvlnrTr: P,V,/n,T, MM = m,-,pr.RT/PV R = 0.0821 L.atrn/mol'K I atn : 760 tnm Hg I a1m = 101.325 kPa 1 bar = 0.9869 atm 1 atm = 14.7 PSI 1 mole ofan ideal gas at STP occupies 22.4 L I p *{l tv -,r.t= ,nr RT Activity Series (Most Active) Li K Ba Ca Na Mg Zn Fe Cd Ni Sn Pb H Cu (Least Acti!e) All Na', K*, and NHa* salts aresoluble Allacetales and nilrates are soluble Mosthalides (chlorides, bromides, iodides, etc.) arcsoluble xcepi. . . Halides of Pb(II), Ag, and Hg(I) Most sxlfates are soluble except. . - sulfaies of Ca, Ba, Pb(II), and Sr Mostphosphates, carbonates, and sulfides ale insoluble except. . . Calcium sulfide and Na, K, ard NHa- salts Mosl hydroxides are insoluble except...Na, K, Ca, and Ba Hydroxides Dr. Ron Briggs CHM 113 (Fall '07)
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l) Considerthe following three samples ofgases: Container (1) # Container (2) Container (3) S!:r.J, Ifall thee samples are at the same temperature, which ofthese statements isfhu ? (a) The pressure in container I isthe same as the pressure in container 3 7 5on1q +o'C Pa'1r le-t. , L (b) In container 1, The average kinetic energl ofthe He particles is the same as that ofNr particles v'- iG -z m{ Al In conrainer 2. rhe pafrial preqqurc ol He is grealer lhan the.parlial pre"ure ofN, ",' ({dDconrainer rhasrhela e5l padial pre."ureofHe rnoe Nz $f",^ t{e VThe Nr molecules in cirtainer i aie (on average) moving more slowly than theHe atoms .z sto*et,
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