Chemistry 1A - Fall 2003 - Head-Gordon - Final

Chemistry 1A - Fall 2003 - Head-Gordon - Final - Heme...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3

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

View Full DocumentRight Arrow Icon
Background image of page 4
Background image of page 5

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

View Full DocumentRight Arrow Icon
Background image of page 6
Background image of page 7

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

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

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

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

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

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Heme “(may fllfl Hig- Pnints l and 1 represent the work fitnetinns in freqttenej,r units of tare» different metals [in the pint hf phnte—eleetrnn kinetic energyr 'tI'E. phntnn trenttenegtr fer a phetneleetrie effect experiment. Use the phetnn Frequencies labeled A, E, C and D tn answer the fellnwing fnur quest-inns. RE 0-” .‘firt‘t x E t“. D requests 1.] Whieh phetnn eieets an electron with the great?|_<_inetie enters}r Frem metal I? Di x} x at s s} r: s} sons 2.} Whi heten will net eject an electron fiern either metal? A} B} E C]: C D] I} E} none 3-] 1|.ii‘hielt phetnn ejeets an electrnn frtsm metal 2‘? _H' i. x]. x B} s C] C n} n- E] 11: 4.} What is the wavelength {nut} nl'phntatt A. if the fi‘eqneney at point 'J‘t‘ is CH} x 10"“ C H: 'n the infrared region at" the eleetmrnagttetie spectrum}? hf- “ti:— 1an at tstx: st sees n} 3st s} 42 as A: fluid a 94% ' ll . II r- Cnntinue with the next question: questions. - 12 5.]. What is. the gr - a state energy in units at" F... {Rydberg}? EH: neg" m I". A] 4:" -4 CW '3'} 4 £115 _ n.1,. fit} What wavelength phetnn is required in excite Il'tis inn From its gmnnd state in first _ exnitedstatetttrtt}? 'Uffi'm(ll '11] at 1.00 E3114 C1115 DJ ms @914 if i . E: six m 5L 1".) What is the innizatcinn energy ef the Men in units 11,? h. “a: "fill [.l n} 4 ts F I- x} -s s) 4 C] it El L as . .r "I _-_.ffflfr:, .5. Emiliam: with 1hr. next tt-safintt'. Name :ihUL-H HELME- ____ ' .i-|. wi‘ai hvthf .' 3.} “filial; atnrnie et’nital the @nmnher inf raglial nudes? 1 IL et unit in: width r " Afis a? fs 1 e 'I E 1 s at 311: at an 'I 9.] The preeess el‘ tenteying. an electren treat a neutral element in the gas. phase... A} requires energy fer all elements, heeause the initial state is less stable than the final «fimetate. -. Bit-Inquires eneegy far all elements, because the initial state is mere stable than the final _ state. 12ft tines net require energy let any element. because the initial state is the same energy as the final state. [ll requimt energy fer same elements, heeanse sentetietea the initial state is mere stahle than the final state. ifltl Whieh er the feiiewing is a reaaeneh'le electronic sunfisufafifln fur mutual Tin {Sn}? ,5? [KIHSIEdm-Ilpl at [anis‘se'hel C] artssiet'hp’ r]5514il”5p” 15 Elli-timfipl . In an atetn ef any element, the 2s ethital is: a always at the same energy as the 2p nrhita]. always at lower energy than the 2p erhital. l enly at the same energy as the 2p ethital fer aterns with mere than nne eleetnnn. D] nniy at lewer energy than the 2p: erhitaJ fer atntns with mete than me eleetren. l1} Whieh wave lei-m fer a particle tiappetl in a l-ilintensienai has has the lewest energy?a A] Page 4 Nomc \{Mh I WHEEL- / For tho following fivc questions match tho atomic orbitals with tho moloculsr orbital formod by thcir sum: 13-]: Which ofthc molocuior orbitals in :11: orcccoiog table would havc thc lowest Thfi H "in: onergy'? {IF- .51 fl , E A] A. E] C] C D} 1'] E} E Continua with tho ncsl oosfioo: 19.] Which of thc follmving mixmros of atomic orbitals host describes a 'I bonding. orbital in films: intomuclos: asisis'z‘ 7' Ajs+s E}s—s E1} z+p= [Horst E}P:+P: 20.}Wliici1 of the following mixtures of atomic orbitals host ocscri‘ocs thc o bonding _ '_ Is in HcH”? 'fiu Bis-a Clot +Pr film -p= Envoy 2 I .} What is the hon rch of Li:' .. mo ffiltl on to I HE E}: :41 L/ 14% L i“? Name EH“: flgflgfl “' Canaidar the cambuatian af fannaldahyda {SI-£10 and tha data below far the 'III fallumng five quaatinna. '1 a a in. a: 1. CH;D {3.1+ ta ta} «- an; {a + tho {I} ILII-H" +dc'+fl:{gj-a EHQDUI .t't.r."=].13u"tnr “9.5 _IL J: ILL .h-Efilfl 12.} Which campaand is raducad in Lian I? A} CH;D E] H10 1 D]: CID; E} mm: of Thea: 23.} What is the ahangc in aaidatiaa numbar 431' the dart-an in mactian I? at. .4 a} .1 CM] m1 @4 14-} What is 315' for the combustion of farma'ldahydt: {Hiram}? a, 124 - -- 521 “Ht “Ufa-«1* C]: 96 D} *1513 E} More data an: raquirad. 15.} Haw many claatrana are requircd la balance the half reaction CHIC: -- CD: in - - - JI- amdta saluttan'? Jana. Ema Jr Hut 4., m1 4, urH + a1. 1 a} 2 C} 3 D} E} 5 at' 15.) What is the standard half cal] potential {in aalta]: far tha- CH1'D attidalian'? '- 1-? FEB": - NFL? _ —a&‘ J , +112 -* k r; n; D1133 ‘3 _ j_ ‘E‘mfl $.31 3} 1.159 ' t: 5; a1 “McMHM Censider the schematic reaction flasks fer the titraticn ef the acid HA with strung base in answering the fellcwing five queetiflns. IP'I.:-"-—' " "I" : H'5c+ ‘- A 27'.) Which schematic hcst depicts the beginning e}flte=rh§11icn it‘ HA is a strung acid'? A} a B] B C“: (2‘ vi} D E} E J/ 23.]: schematic heat depicts the beginning cf' the titraticn il‘ HA is a weak acid? k? 3:: e C) e n} n E) e 29.} Winch schematic hcst depicts the equivalence peinl cf the titratien if HA is a strong aeid‘? _ ma me (a): D‘jD me 30.] Which schcmafie heel. depicts Ihe half-equiv alcncc peint cf the titraticn if HA is a weak acid'.’ _H ,.-"' it} a E} e c; u: D} D E} 31.] Which schematic best depicts The equivalence paint cf the titreticn iE‘ HA is a weak acid? , a n} A tn 3 ;"' i i; D] D E] e "w-i _.-" r. Cumin“! with the next I h—._.—.——-—l——I'-—""_ Page T Name Elfin” EQEE acid {an amine aeid fntmd in nine questions [lane pairs are net sham]. Cansider the Lewis Structure fur aspartie proteins} for the neat 31.} What is The hy’ariditatinn an Went ans [1] in aspanie aeid'? s} a B} a: Leaf mast E} at 33.} What is the D—C-D hand angle at earth ans {1} in aspartie acid? sass Essa @m m use E12?!) 34-] Which is the best descriptinn at‘the meleemat ntientatinn abeut earhnn two {I}? A} hignnaJ planar E} square planar C} T-shapfld CC { See-«Saw t Tetrahedtal t; J t ‘1 I: m I a}; a) 3 ta 4 a; name 36.}1n which of the fnllnwing pH regjnns will aspanje acid have the yealest pH bufien'ng eapaei A} «(I C} ~45 D] J E] n-] 1 ll 3 . miehcarhnn ' I? | a 1 L11 NJWhatisfl'le the aspartie aeitl maleeuleatpH 10‘? 13%"! .15" “4' a] (“fl AH (:10 D}+I E1+2 a . , .t'rfl .. . 15519.15. mismq JEJWhieh aeidie' :-.-.: manfltatfifl‘bfip hated at 111:. 5.1]{madt aIlthatapply]? an .I 1350 (a) T nya Elean'ttell 't t_. has: paw [j U: test find {J Pagefl % 39.] f ' is the must aeidie prutun en the aspartie aeid muleeule‘? w E} e u; 1: u] s E] can". 1:11 ', 4a.} Wbieh best desenbes the pH tittstiue curve at aspartie aeid sulutiun with a strung heat: fi'um 111'! 1-tJ-tu Isl-1!}? A] a single I'ist regiun ensued pH 1': and an equivalence paint at pH '1' E] Three distinet fiat reng and equivalence paints. A single Flat regiuri at pH ‘1' and a basis equivalenee puint A single flat regiuu aruund pH 3 and a basis equivaleuee puth E] nut enutigh intbtmatieri is pmtdtit-d Eutttiuue with the neat queetiuttt The ten fur femtie aeid. Huuutt. is 1.7? 1: 1:14. Use this infunnatiut'i te answer the fulluwing fuur questiuns. 4L} What is [HCCFDH] when 13.1 @f funnie acid are added tu LEI L uf water? A] ass at ate .1 D1 1 at s chett "$- ‘r‘iJ' 4' FEE-W t.- '. "' .5 42.}‘1‘1’1'iat is the eenjugute base uf fu ie aeid‘? at HCI a1 DH' e1 _cuu' D1 H1:de a} Hail .- Et-i._.-"' 43-} What is lit, fer the uuttjugate base at furmie mi 1 A} ERIE-E B} 4.?5E-1fl C} 3.1'DE-9 D SbSE—tl E] 15.9-DE—T 44.] What is the pH at" a ELI M funnie aeid sulutiuri when it is titrated tu equivalence paint with strung base {assume nu trulunte chatty“; 4 at as at "1.4 1:} as g E} as WHUWW t1 _ \W’“ t efittt'" - “Tr-.1» I Cuminue with the next questtua: I 45.1 s buflier can be made by a eumbinatiun uf a strung acid and strung base. an be a eumbiriatiuu ui‘ a weak aeid and its eunjugate base. . ists changes in pH- hath A and C. Name “fun” h For the nest thirteen questinns, cnnsider the pints helnw and the genetic alumiaatinn nf a stable diatnniic mnlecuie ‘A;‘ at 293 K in a Li} L flask. 1'1: A: isi *" 1 A is} Raglan: — — - n dfilfindl mum Reactsnt Reectant findmts A B C D 45.] Which plet repr .. the standard enthalpi-I change for the reactien'? elm-lite M E- the“ A}?! Eli: DH} Péuflt‘ It" _tn~ 41} Which plet rep '--.. r : the standard enlrupy change fer the resetien‘? A} A. C} C D} D 43.} 1|I-‘i'liicl'i plat represents the standard free energy change fur the reactien? A]: A E] E C} C 41} In which imperatun: range will this reactien he spentaneeus in the standard slltitc'iI r 'E “a E A} '31: T a} law T c} as T D]. m T E], mm m" hfi alt Te? -* E;- e} 5'1} Which is the best expression fer the reactien quetient, Q? J fin-"t IE ’1‘} Fe”: M Bl Pam's Cl Pu P's Q3391 i Pu El Phi:2 I Pit fin a 5] .} 1ii'Ii'hich will cause the equilibrium reaclicn te shift tnwards the preduets witheut changing the equilibrium censtant {mark all that apply}? I. [easing the temperature. ' creasing the volume. "- Adding A stems. ‘3? Adding it; melecules. } Adding and inett gas {c.g. Neen}. 51.}ll'the ueiurne ef the equilibrium reactien is halved, what is the relatienship between Gandhi? 3H HUI-HER. BlQ=K LCQEEK DJQ=K1 E}Q=dh’. t'. -- .1 [Jam Q Zeal-— ' i1 131.5:th I I it?“ 5“: I?" at“? _-J_i:n:. Name H 53.}! What is the tetsl number effi. uterus in the sample if enly 1.1] aim at A; gas is _ ' itiallypresenl'? it; ' L @391: mi: lam w it r: [am It!) ELL}--— l.flxlfl _ f :1 __._._,_____.—-—~“ Jaw-F C] 9.3}:10'101. n" fl Hittite“) f a D] “T.- \ f- ll: “all”: H‘IEJ rug-Ill” 3:: "I'III'F' I. |FIN“:- E} 44.0410 ' . . 54.) 1What is the equilibrium pressure [in aim] in the flask il'eulj.r LEII aim [if A; gas is initiallyI present and me half ef the meleeules are su'I:|IseII:11.IeI'|1I:,.r atemised'l' I '*l "1 mas 5} Lil @lfi Dias E115 55.} What is the equilihrhun partial pressure {in sun] et'fi. stems ifunly 1.1] m uf A? gas is initiallyr summon: halfet‘ the meleeules are subsequently atemieed'? alas 5's} fa C115 e an E 2.5 ll“KN/V } :I' 515.} Wth is the equilibrium partial pressure [in aim} at A aterns it'uInI}r Lt} aim era; gas is initially present. one half el'the molecules are subsequeme atemized and I mule efNeengasisin' . M115 { Blllfl 57.} 1|Ill-"hieh has the highest reet mean squared veleeity when there is a mixture at A, A; and Mean? D} all are the same @an‘l tell A} A SE.) Which has the highest meta: ltinetie energy when there is a mialLu'e ef A, A; and 1Ct‘J-l'tle (3 all are the same E]: can't tell C] Li D} it] E] 1.5 H} A: C} Me a} A; Cuminue with the next I —-"I Page“ Name I 55;; H Iflgnflr__ Fer the next five questiens, the peints shewn lie en the curve describing the relatienship between the variables shewn. Answer the questions a'eeut hew the peint will meve fllflflg the curve when the eenclitiens are changed as netetl [fer serne cases, the peint ma}r leave the curve}. If the peint wequ metre inte a tegien between me lettered arrews1 mark h-eth letters ert yew scantren sheet. Fer ex ample, if the peint sheulcl metre up and te the right mark A and E en yeur 311st sheet. Fer cases where the curve is net presided, it may help te sketch the curve passing thretigh the peint fer the variables listed. Use answer E if the peth tlees net metre. EKhMPLE: P vs. V fer an iclca] gas. flew dees the peint meve fer an increase in P? ANSWER: AD. 59.] P vs. V fer an ieeet' gas. H the peint met-e fer a increase in V? s.) it. last? th e} e E.) dees-n't metre 15-0.} P vs. V fer an ideal gas- Hew deciswthe peint metre fer a decrease in T+ if the velunte is held cenetent? *' s l is} it a} s 57: n; e E] deesrt't metre Pit- hilt fl- . HF T Name “than I- MAI-5 “K B} etc D}D Elliuesn’tmeve IKE—fill;- __. 151-} flu-{9131' vita-term.-I ef'an 'deal 152-} Meier energy of an ideal gas vs. T- decrease in. the walnut: ef the gee“? A] A E} E C} C D] D @5111 new: Haw due: the pehtt meve [ctr an iaufltcmlal it, ‘15th «hHfiLtéE': firth- f1 E 153.} ME v5. HT fer a reaction where 11H 2* fl and apfireaae in T? I: AHA E} E C} C E] deean't metre . II a“ _-_.-' :15 1* fl- Hew {fees The point meme Ihr I. MI I [Tenth-me 1ttrith the next nation: __ h I J-I—__ —\-——_.—- Pttge 13 Harrie Kit-MM bid-HEEL _ 2n -5"?n?+ t 'J t:- Et-i.] Electric currenL or flow of electrons, is measured in Amperes {A}. Doe Amp-ere is the deliwry of one coulomb [C] nl'chai'ge per second- Wl'iat mass of Eiric {in g] is oxidized [to En“) by a dry cell battery that supplies [25 mitt of current for two hours {recall that Faraday‘s constsogisfifiephmge i'ri coulomhs on a mole of electrons]? “um Bin-1 ' C -3 Di La sis-s “"1 tit-iii. I] t" jtan-FM tints? it; trials" F Int-troy H.313 “and “7-? Hi:- '-"-~ tritier .2 let-ii er inn-is 55.] Which is this or the chemical reaction 1 Hi + D: —- 1 H it}, which can he carried out on a platinum catalyst in the gas phase or in a galvanic oell [st-tom below — marl: all that apply]? PtlH;|flH’|lDH1fl;|Pt- More energy is released hwith the catalyst. The entropy change is greater with the catalyst- orih'opy ofthe universe increases for both processes. equal amount of energy is released in both processes- 1 None of these- do.) Which is one when a gas expands isothermally against a constant pressure of two here 1: l] 1.11 'i' 5t! {ma-1' '1 Maplflltl W; - [spy—i gas releases heat- q mg: Ci HI" 1‘1 “1 eatisabsnrbedbythegss. : 4“: [Ln semi? ' The tempera-hoe of'the gas decreases- Cf " No heat flows. ti 1illil'iich one of the following will change the value of an equilibrium constant?1 ' A aitgirig temperature adding other substances that do not react With any of the species involved in the equilibrium ,ej’ tinting ti'le. initial concentrations ni reactants venting the initial concentrations of products E] all of these 63.} 1titl'hat is the amount of ‘C' at equilibrium when I mole of-h and I mole oFE react ordi-ngto chemical reaction: 2H + IE 4—- I: 5" _fi—_Ij I"I r-L'L so meets and its moi: G 'b i" is : me exactly l rnole = C} between t‘J-S and 2 moles D} exactly 1 n‘ioles is .l - El greater than two moles .r, _" . Name \{L-lfllfl [5m flflf: 69.} Henty's Law constants {K} are the equilibrimn constants fbrthe reaction of a gas dissolving in a liquid; 3': {g} —e 3-: {an}. Which of the following should have the E?" largest Henry’s Law oonstant for dissolving in water? K = ,__.—-— .k I Db: .. Bl He C} At D} H: @fli ti F? p "'1 =Eod= Ur'i‘_-Hl:Fn hill—i '“" To.) Estint e the molar solubility of Calif}; in. [11 hi NagCflJ solution {hath to, {Caflfly} = in n 10'“. It... {Mascot} - to“. Handgun-lie” ch10“ 1:u_i~|o"fl Elean‘ttcll __.s e. . resets-s; 'i; “" .-.. ism-z = “it”? TL} In a ealon'meu-y experiment a student determines the enthalpy for the reaction of magnesium with hydmehlon'e acid to be 430 ltlftnol. The true enthalpy for this H g veal-11““ reaction is 45D Himol. Winch of the following souroes of error could account for l M et u 's diaerepeney‘? fir] 4 H't" I ,—_'* E . . dwelt" *l fen-El tit. _ fter recording the mass, some of the magnesium was dropped on the counter. KB} Some of the hot hydrogen gas escaped during the reaction. 1' C} The calorimeter was not tightly shut for the experiment- The final temperature was recorded before the reaction was complete. E} I} of these errors would cause a falsely high value has the enthalpy- - A sample oi" cold-stint“ was added to a sample of room thiriperaliftu-e water in a calorimeter. Given the data below. determine the energy absorb-it‘d by the calorimeter {joules}. “"E'ti‘é so one a} u} use o]. are E] can't tell Ha" Le. _'r'I-'|I1‘J'l. T MT... = {m w t \ iltlpgtti -~‘|.‘~I..'-l'li Etd't‘rfiymfi '— .LF’EEF" “it lit-l ...
View Full Document

This test prep was uploaded on 04/01/2008 for the course CHEM 1A taught by Professor Nitsche during the Spring '08 term at University of California, Berkeley.

Page1 / 13

Chemistry 1A - Fall 2003 - Head-Gordon - Final - Heme...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online