Sp 08 HE 2 - Farm CHEMISTRY 102 Hour Exam 11 l. LID. .3....

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Unformatted text preview: Farm CHEMISTRY 102 Hour Exam 11 l. LID. .3. D— % 4. Hear Exam Q a 5’5ng 037 D3401}ch Sa/u‘hous Spring 2008 Page I My answers for this Chemistry 102 exam should be graded with the answer sheet associated with: a) Form A Wavelength b) Form B c) Form C d) Form D e) Form B 7 x 10'7 6 x to"? 5 x 10" meters (fink-slew. SL374?" W ("M 755 E 9W5 The visible lines in the hydrogen emission spectrum corresponds to the following four electronictransitions: n:3an=2, n=4+n:2, n=54n=2 and n:6—9n=2. The color of the lines are (in no particular order): violet, red, blue and a second violet line. Using the visible Spectrum of electromagnetic radiation given above, which electronic transition corresponds to the red line in the hydrogen emission spectrum? _ b) c) d) . . "r damsel. r Cons1der the followmg ground state eledtron configgrat :kc‘ t" h keg Y n23an22 Al glrfioq l9 4% Soft la 2: n=4 —>n=2 on 95 wc‘wf ‘V l . . n:5_)n:2 CarriegfcwthS «Lg-3 glued/[55+ «J— E €91.19?" «Lireth I-4i0m wkllxch is 3 ~91 4mm: “MM Levtéij r37 00 Lac—men egg“ Hamil 1 DZ n=6an:2 “2‘ ,__———-—'——‘ 1322822p63sz3p64so3d5 a4l+é {1%40 +§ I: .23 Ctéc‘lrEV‘S l Which of the atoms or iotns below has this @n/‘a v mt as we a) vyaqa‘ b) v1.12“ 'ound stat electron confi uration? : k r 9’3 91'“ “*5 I fi’flhr} 951M525 cert-ed (67v c) MnJQS e _ L d) Mn+ , 2%” e) fi‘ 1"} 336 _F For Cr;LAr3 (I‘Siéda 51> cane-1"} c For Cr‘LJLAr} lu‘gfi i s Correc‘J‘.» a) “t b) --r c) d “’l’e) ) Balk Cr amt (rt me @Mefa'lr‘ows +62 M Mrwr Which of the following statements is false? E? FU'lfjfxr ’31 éreup 5 A: a; 2' APB 3* C 3onpm‘recfi él-ec‘fmrts) A 3 Elements in group 5A of the pe 'dic tab f - ve a total 9 n a; unpaired elect in . _‘ the ground statel.’ [:1 252' is: 1957' 309' 552 L’ din/é? ‘7 W H” In“ Iodine has a total of 23 electrons in various p orbitals in the ground state. '1 3 P dawns I Element 114 (when it is discovered) should have a total of four valence electrons in . the ground state. Elevated H‘f W‘ H bfwwar’” P5 M *3 few/J ‘W‘l, 55‘ k“; g The periodic table predicts that iridium (element #77) should have a total of 7 unpaired electrons in various d orbitals (in the ground state). Mercury (element #80) has a t electrons in various f orbitals (in the groun state). :- 6 $1 S'&I0 (3 [ééfil‘ggds 40" M q ' 4 ‘7 st 3 g(J 1y {rec-Q 0Q aie;+rig5\s ) ya; Enact? gtéc‘éw'lfy In‘Lxe] £95 1 2 Fin—M TIN}? SuLS‘i‘d-KC-IE Lu;+L\ 4kg sires. 85+ 1h_‘\L€Fw—81€¢U1¢ir ‘Q’Nt‘s will a; we 5‘62!th 00F 35%.; He emu Lotti be A gusts All of HQ Subsiamés leg-+fl2 are ngnfaiar CGHatzu‘l CHEMISTRY 102 Cewauuné’s so aa- wi kc; we Lston s ring 2008 C D a ~ *~ 3L ' P Hour Exam ll icffdrs‘e" fef'éégr Signage “I _ MS +105 Page «9» _ rat’s—r A’Hfifiar MESS}. "+ LUCA-X # i. Sirelfic’gfi— {git-HS #f 5 Q; 5. One of the following nonpolar substances is a solid at 250C and 1 atm, while the Sc: 1 {‘31 U1" is 28 others are gases at 25°C and 1 atm. Which substance is a solid at 25°C and 1 atm? ‘15 L ' a) He b) Ne c) H; (1) C12 @312 Isolan, an organic compound used as an insecticide, has the following skeletal structure. Complete a Lewis structure and answer the following two questions. i t . , A J, F5 “9“” “:87 IOFSaVL‘:LH rvles r , H m [Mug g 4’6 | CU die 3 ,3: Ma. HmTH—H he;an ahi cflaublfi Bwbtfl§ are alWClU§ ‘ N _N C9Mf§5f¢€_ (91/5 1V” “‘9 l 6”.th {TI/106‘er gin“ Hume are 3 (£5qu1'; H l \ Bontflg («mg no 449?”- H H flea-42$)! Hm”: ari' 3 .TT’ Lumps Pry»: r ’QL‘ig 6. How many 7': bonds are in the complete Lewis structure? 1 1:: ml 3) 0 1:01 C)2 3);; 7' ‘0 U‘ has 4€4y1ah£o€ral adjphe"; : 4‘ (\CLS PINS/(I mule a l c L Jr ift’gg' ' ‘ bow (Eu 9} . 'L a“: 9 n e (96%“, “(fa $63 1' (9H7. What are thsjapproximzate anfi anglesibout‘tl‘ie fiigrcdgenaavtomiahleled ltand q‘ 30 carbon atom labeled 2, respectively? a I I his afipmxhflfiaffi AOFVQ dug a) 90°; 1800 b) 1200; 1200 c) 1200; 1800 d) 109°; 900 09"; 1200 '—--F‘ :. u-tlfimww'n 3&5 érakléIM-S (CU—u. .Lci’e—L- .: W Q). Q5Lwr+k “(char rq+€ . i . “4.5:..5 o 2 I, g .1 8. An unknown gas has an effus1on rate that is 2 times faster than that of 02( ). Whlch of the following is the molar mass of the unknown gas? [‘3 31 a) 2.0 g/mol b) 4.0 g/mol @0 g/mol d) 16.0 g/mol 5 1 J2. Fae-1‘: 31 : —-—-—- f I "—E (2 Ml CI’IEMISTRY 102 IT’IAQ enema-l, +r9h&5 0 “(2 war k Hour Exam II C . Faciii IE lie-«of fraud k +al Char (0Q octopus-12kg r‘n‘ u- .Pae F:£m'-#u+ren£,+ke Crafted (swarm 01¢ g J. J i I t a; fin.» II lSCQ<m f cffr§+£véegfy§h $5 geiASL' ’M- FMM +1“ fC-JH ‘ I as. if, . t“ ' .. 4 in [cu fl( Consider the followfi’gp orur grogfixs £3 gfomlSfiOtII: i3? tag riext twsoeqiigstigri :65 3 P ('1 9. \J'E‘Hc t [4E sat/‘3 cflpfic’ufls @vi. 46M 11. 'r . . . In each group (I-IV , Wthh atom/ion has the larges radius? _ For has cglvrcait mlfi an LL: funk-dre‘f'fro‘iwd 630,0}0 watfizw /I W huweh"? 0(6 [efi‘lt‘OwL In group]: 11.10386, La“, 6 (Q pro 4-07.15, L. )4 __‘ i‘.f{_{-¢:;1.H-}Lvmier ml S,F 6 turn“): 9"” tun. Hz rrfi+ flogfgflj (It?) radii}? 2+ + (Pg g :4 LI“ (9" + e in: ca; are “ elr .‘ vasr ’Rb ’@ [Chain- +20%! rest)! M3314 CL Simon {Infant Edi-'0‘”! _ ‘ I Emefqu'Q out _a_ liar ef Shit”: (9, cut-Li Which group(s) is/are 1n ordero reasm ionizatione ergy (smallest to largest . 1.13.)? awarfimfl 75:35 Ha fietaesi— e 1525th (e) LetoQ I; ‘I-Jn-e. ‘8 r'ca‘l-O'ts. (9 “AA S‘W—lmt’ e (aghast; 3U I'd-e5; ,Sc) (9 ha. CU": 3: CLch 5 Miler 5:32.- ” b) land IV Iandi‘nf d) a) II only I, III and IV e) H and 111 ‘ figup’lv {Scan lseelcc roam Seriegfafi ken/g 395*), Srltme/i 10.5 I, 5.; rain-15 iv-+Le nucleus, kouflc Mega cite {yaks {L (,5. wife‘s-fie {Ci-r l’f‘T—E Clan S‘Malfer Sign BrC—IWi‘g‘ I + 4‘ 195-} IE CkHCfl [awed ‘ch 6’34 PHD wiIi Ilka-26. 4‘»: Shot! I c)02’:Be;F;Br‘ 3’ (a a) 0; Be; F; 39* b) 0; Ca; F; Sr2+ d‘ 02’; Ca; SB; B1" 6 02'; Ca; Se; Sr2+ . ) Ctr-Lie art-owns [ens iv~+l’%)u£erwu 5 (“9,101 {‘1‘}ch glam/f Gav-.6 4—23 species lug E’flLch circa which [has largest FCLCQEUSCI‘U“ 85+ , S i E e ' - MV‘Q+Ur"'1KE¢y¢;§" L Consr er two 1.0 L containers: contalner A contains 0.50 mol of Ne(g) at 53°C and container B contains 0.50 mol of He(g) at 50°C. Which of the following statements (a—c) is/are $3113 concerning these two containers? 5 M“ _+“'< 5“ C 99‘4"?” ‘9" km s M ktfiker teem/mo ra‘lvri, H‘ lice K 4’h( 14’5"” ‘1‘”“0‘36 kE. a) F The average kinetic energy of the Ne atoms in container A is larger than the average kinetic energy of the He atoms in container B. b) F The Ne atoms in container A collide with the walls of the container more frequently than the He atoms in container B. He 054m“ 5 WV“: déssiff, 0" J , , , 5c: (6‘!!qu mar-la 4rd?“ 3‘ b c) I: The pressure in contamer A is larger than the pressure in container B. V - 1‘1 WM“, ,5. Cl All of the above statements (a—c) are true. Hf“??? [mfg reg: %: “562$: . None Of above ate?:lj:(figfiregge' CL‘J-e’n-LS M084 «:2 l5 c2 v (_ W (as {—er Q we raj {ft/({acfliz; similar Maia; 9-44.55 GIJMQ Ibéiwrajrflfl ‘ ‘ j .‘1—SRT‘ Kézy Rank the followmg substances m orde‘r ofhncreasmg ofil f; to highest boiling pointhg. m gray” o LiF, Ar, HF, H 1 Li F,IU;1WLELC€$U£€F sroniciemic {29M es, hails 0" L‘F7ng‘l‘k‘mfl . ng ponit (lowest a)HF<LiF<HCl<Ar r< l<HF<LiF c)Ar<HF<LiF<HCl HIE-(will; {1L3 agil'npjfie rm H—fieuflI-«jl [U95 #4 né’xiL [6?L091 dIAr<HF<HCl<LiF )HF<Ar<HC1<LiF . )L fa bg liar: FOIWQl- 80% 4"“9 fir—Lave algezti/QHLCL Same kale” M235, 30 4f} (“We Ftfi‘w‘t if“? 55 Pk!” (in. ‘ r ‘ hem oqt‘ C as a. l' lul" ‘ éjfi/ 42¢ ngilér‘l-em/A “FL-aw. fir-4, 13ng £1.19. 6’ D CHEMISTRY 102 Spring 2008 Hour Exam II Page j E , t a“ tuner) m . sows M 1W 0073;: )1: Stew t 33m). [1H3] L3 29 13. Consider the following reaction: 3| . , _ 4 H20(g) + 3 Fe(s) == 4 H2(g) + Fe304(s) 14a / H 1: Ha OJ fl What is the correct equilibrium constant expression for this reaction? 4 3 a) K: w b) K: [HzllFe3O4l [H2] [F9304] [HzollFel ‘v [H214tFe304] ‘ [H2]4 ‘ F‘ M C) K: [H20]4[Fe]3 K: [H20]4 ) / E l ' l § _ e> = \\E I hich of the following statements concerning SF4 is false? — , ‘ a ‘ k ‘ b3 ts l3 929* 5F? L15 + ham“! [>an (“Rug/é 60M {411] $3 L: Erratic aaHom a he hybridization of sulfur in SF4 is dsp . @he molecular shape of SF4 is square pyramid. —~ 5 S M C9" ‘5‘; Sta: . c)T The smallest bond angle in SF4 is approximately 90°. BM) (“3 (a, ML 4' 70/ tile, “War (131' SF4 is polar. 9mg Jude; 95; 104 (“azujd (fitter (Si/fr e)~r It is impossible to satisfy the octet rule for all atoms in 31:4. ’ W W [8“ { t3c4¥a s are ,6 [73:87}. E 8 15. Consider the following three reactions: W123 I. F(g)—>F+(g)+e' AH}: ? Ion"li.u-l‘:cvk Fmrjg‘fw F Haw“? F’s" WC _ _ ‘ a or firm EAW'W II. F<g>+e —>F<g) AHH=? Effoifiekfififgflftg [a feju+tue(erp%iz)’ III. S(g)—>S+(g)+e' AHIH=?IF (our 3: _. . a I IE mil Which of the following statements (a-d) concerning these reac ions is true? 1 ‘ 4’ A the? I a) F AH for reaction I will be equal to the first 015% oryfljuoaiine. F AH for reaction II will be equal to the first ioégéhon—eé‘epgy f0? fluorine. The value of AH for reaction III is positive (endothermic) and the value of AH for ' reaction II is negative (exothermic). d)F AH for reaction III is larger (more positive) than AH for reaction I (AHm >AH1). From 4‘rew’Q) e) None of the above statements (a—d) are true. I. E [or 5 LIFE for F. F v — e QVM " M q 5 var& 1 r ’2] ~ \ x .. 9 . e _ \1/_ p — Ye _ 5MP I a D ‘1 a ,- ‘ ,- \_ Fl kph olar Stowe '\Fr tF/1\Fl 1’ ~ . I6 e~Fbw0 CHEMISTRY 10215 “a! r __ I F _ Spring 20 8 d ,-¢a(e5 fatal Hour Examfl @dou’afirdsufd +rtgofal Pyramcéskupo Pageico S or, . Mot ar . , ar . Draw Lew1s structures fo the followm five molecules then answer the next two questions. I pt Tisha? I " <4) \ {TE-El Palm, 31:6“ XeF4_ f \ 3‘83 Hg: 368 ’ 5 F! - 16. How many of these molecules are polar? “"1 a) 1 b) 2 j d) 4 e) 5 11 are olar.) Tia/e inglutéZua (Gang I 0M5} Lukew gvMuedL Rep, &0 K04 Cancel c.qu Quake 9;» (91113:; [p15,aac0 SFJU‘Htos'e 3 17. Which molecule has a trigonal pyramid shape? camp 601495 are Polar. g F Mg) H— | e y Qrfi iLQLLIoaIQr, 3‘0 “9 a) IF3 b) SF6 @ PF3 d) XeF4 e) SP2 I V-Skkpufl/‘FG tar The Campy“ w) Weakerl- £n4€fwlecolzew {69"635 we I, (“we 44% kijkesi VRPQ? ’oreSSUrt’. Because U145, :42 (9, 'g ‘5 18. Which of the followmg compounds is expected to have the hi hest vapor pressure at so e ‘ ‘_+w1 9&1 k I l tem erature, T? cuon HF Cam. form +3.4 relq uel 54-11;“ H- p 7n+Cra_‘I-"‘1$/ ‘Hu‘ese- ‘H‘V‘fifi CUE/l ké‘f‘ LET-V6 weanficgfIM , @CH4 b) SiH4 c) NH3 d) H20 e) HF a H" F" C147 <1th 5": are lop‘FL. nomfolm‘, so «Hue; 60:12 i e l/é‘l-I- l/é‘ih [van—via Lb ‘ 2. 9"“5-712. smaller Chi? wa- “V H wake,“ L D Agrees, au£ Las‘ldv-L weakéS‘} ¢9Ve7mlf L 19. The success1ve ioniza 10n energies for an unknown element are: .r [44 PC {wj :54 v“ a, 13L Prefiure’)’ 2 IL IE1: 896 kJ/mol IE2: 1,752kJ/mol up a JUMP Maura—#seiwsw 13:9 QRQIE E3 = .1155 U 51. Roman Shaggy, : IE4: 17,948 kJ/mol MS 4m“, vague e eel/wig so W (inhuman I _C a - alhlzk1 CQP‘HIL M9401, Which of the following groups in the periodic table does this element belong?w a alkali metal group alkaline earth metal group boron group ‘ l d) nitrogen group H»~(,; NE) M +05” 6) oxygen group 00 L” \ \ .... 1x. ~— t@~&~@/ l 260 b KJ K h 4 0 “L9 0. (’J l H. 20. Which of t e followinég mcgleéiile’s or ions has the smalle t bond angle? De L0 7’ ’1 ~19“ A (900 “Dog _ I 0“” ~ [.200 .13 3 Q HzOIgC b) XeClZ'JJc' C) 03,183 d) HCN’ )0: e) N03—l195 banél CL ll! if I/ 57" “WWQ 4“ (tang/(5:3: 7.253251: (msw rs lisw‘efl) Uu‘f‘lm’l ve +[t Form A E :- E‘sko‘low '5 e egner .31.; Z I q (as OJ 1 Raf-ens of Q D E M R 0" k7 firojcn . CHEMISTRY 102 Spring 2008 Hour Exam II Page 21. Which of the following statements is false concerning the Bohr model of the atom? 5H I} '1?) The Bohr model correctly predicts the energies of photons emitted by excited hydrogen atoms. ‘Hnreua k H44 4149 v we 3 7 U03}? 9 ‘4- ‘ @ The Bohr model correctly predicts the wavelengths of visible light emitted by excited neon (Ne) atoms. Bokr Maflef overlaps/or [EDP etcea‘zs by)“ a «(a I E (96 fmm are) The symbol n in the Bohr model repregents aafiowed%1rcu grab} fts in which an electron can be located. T d) The simple, well—defined circular orbits for an electron in the Bolhr modeiare ot allowed by the Heisenberg uncertainty principle. Kiel-1 CB 37+ 9 'L ?w%e’rc 36:59“ ‘2 re (L 'T e) As an electron in the Bohr model absorbs a photo of electroma’énetlc radiation, the electron moves farther away from the nucleus. 22. Which of the following statements is false? LI 1" l‘ 5 iggelecfifronic 4...» Hi" . __—-—— ‘ q! t 315 I: )TTT'fIOZ‘. lémtofl‘fcéohgazblan-f’ Iovx'rcq‘ Mb It 3c“ ) ( a eta o “in“;\ a no as_e ectron on 1 ur tion. \ . C0 "c b): Caf-Nlnéglz fstgn exam? e o a c%m%%1§ndth§f%%nfi§i§1§5§ idiiiceandgvélgflt grinds. c) I An S—O bond is an example of a polar covalent bond. «1 @fignjle 1:5, (1 A bond between two identical nonmetals will be a pure nonpo ar) cova ent b @ he partial negative end of the bond ipol in the Se—Cl bond should be around the Se atom. LS Moré 6 8C VO’Legc’J‘w‘t 44410"- 58 C7499?“ 446‘ // g (D C] w i ll [ta ué’ 4Q! J461F‘Flti negafltm ehd/ 0/sz bewg ‘9')” 9’ 23 ' 23. How many of the following are correct groun state electron configurations for the element or ion listed? Bi is element #83. me n 1 L W c; $5,249,293 £53.25 gp M9 Mg: x W2 “W3 35 2. ‘1‘ mo 512—: l 2 4EN‘335 BR 1 H Solwé 3 Mom: [Xe16s25f146d106p3cxe3 (as L“ P 0 (None are correct.) b) 1 c) 2 d) 3 e) 4 (All are correct.) : cull: atVBhDU) =loe' H“ C-¢ ’5 Li I 24. The skeletal structure of ethyne is H—C—C—H. Draw the Lewis structure for ethyne and then complete the following sentence. The carbon-carbon bonding in a moleck‘lle of ethyne ‘1? 20 is best described as: TLQ 4 rifle (“MAL is com)! 95" a] I r ONO ““ “wacD Tr layup}. Emk C, afflu—x [Lce> ("Wear geotmé‘f” 5’67 o a) one cs bond due to overlap of an sp2 hybrid orbital from each carb and one 1: {i from overlap of unhybridized 2p atomic orbitals. 9‘16!“ C a “’k ' S S ’0 b) one 0 bond due to overlap of an sp2 hybrid orbital from each carbon and two 7: bond;; 6 to! from overlap of unhybridized 2p atomic orbitals. M71”; 50’ E'EQ‘ m S to 7 r. 6) one 0 bond due to overlap of an sp hybrid orbital from each carbon and two 7: b nds form W from overlap of unhybridized 2p atomic orbitals. 9 r ‘6 “\‘f‘J ‘9 V6“ 1 P (1) one 0 bond due to overlap of an sp hybrid orbital frdflétficgfiffifin“ hi W‘I- Lu 0 clone from overlap ofunhybridized 2p atomic orbitals. UVLh/g’krNQCz’EEVdIP mien/c7; erbiiuls 9‘1 862614. (OI/'50“ a vet/a) a {0}qu Q 77’ bangs Form Lei» K: mol NOA +k‘d» are PF€56w+ a'l eg-IU; Iihrium, E‘iéL IL: so {-3531 '2 CHEMISTRY 102 Hour Exam H Spring 2008 Page i e following reaction and equilibrium constant value at some temperature: 1 C N 0;] L V 10%] An equilibrium mixture contains 6.0 mol of N204(g) in a 3.0 L container. How many moles of N02(g) are present in this equilibrium mixture? ‘15.” 25. Con' 5 “i N204(g) = 2 N02(g) . K = 8.0 a: a) 2.0 mol b) 4.0 mol 0) 6.0 mol d) 8.0 mol @ 12 mol x ‘1 _ x .. a 2 .0050}: 1 346 [30 26. Consider the following molecules/ions which all have selenium as the central atom. ‘9‘ e I \ 5 ’F' E' [‘§~*/E‘ 2‘ " who» r C 'ééxa ' “E” SE ‘5’ «075%? i f I ?‘ l $043321? ":1 “EeFiif‘lc’ SeF42; 3:? SeF5+ HOE SeOz [95 Sp‘k7Br-Jfi . “ _ 3 l _ \éi dSPkabrljfi A P Kabnflé \0, [Q\ n how many of the above molecules/ions is the central selenium atom sp3 hybridized? ‘ 3 (9:41 S€&> 2‘ efikilorlt S ‘fti—valwngl ‘ é (Opmue fr dimer!- 5’) 1 ‘3 1’ b) 2 c) 3 d) 4 , fig! * W Ce-VLi'Aag . S (9 & Pl( ? V1. H’L (Obnpoqu ‘ e) 5 (All exhibit sp hybridization by the centra selenium atom.) ‘F I S C " is $3 €95 Lag/‘1égifif4‘. I, \:\’~:~( . 3 7 d5? Lybrnifi 27. A Lewis structure for benzene is: 2'? If H “IT eleclmus in 7- C H\ /k /H be” étwt at» L flel‘ecmh'firfl 1/ abaug ant/Q (“lick/W H l . ' H/ \T/fl\fl r 3&3; affar-é’c This 915,010.)“ l. //¢\H‘ Wk CHIC-Q [MMQ’Scorf / \L e “6‘1 +0 0&4: 04461», H I resaumz 5+rv44t/f (’5 Cal-m [4e & TCLLu lax H“ Which of the following statements concerning benzene is false? 56 e. a [30v ( "A05 cQoob It (new? S rm‘de ¢9pt€ fiash‘iovx 'I’a) Another equlvalent (resonant) Lew1s structure can be drawn for benzene. @ As predicted from the Lewis structure(s), three of the six carbon—carbon bonds are shorter than the other three C—C bonds. 9—“ (Lea 1/! 12¢] WOW 1" c) The carbon—carbon sigma bonds are formed from overlap of sp2 hybrid orbitals from ‘ each carbon. Eagk Q Lag 4r? and Ill/cum.» eon/Lew?) 5‘9 Load/L C, i S T d) The electrons in the 1: bonds can be at quht of as deloc lized abov and below the EE" kabfiflizafl. entire ring surface. True’du #vaé (an &raw V‘CSéDKClmCe 5‘17 ochre 5 kJLgr( “I 6) Each carbon rnb benzene has one unhyb {died p atomlc orbital. a:a tam/(4; I, I! 6 91% Ca“ W,+k SP er'ia‘L’M, fre‘ U lie gunfire in. (p we URL} rtoaiiag P (149mm drédal d; {fey-0C4. fag; 8].;ew5' )0 Vase»! on 6,0~CL\ Carbon, Form AU-‘L/é—‘KO :52: Ang—’ $an Aillm} > JMFLVD H— M°54 C CHEMISTRY 102 0 ~ ’ - . C .t O k “A. x I \ ‘ Spring 2008 HourExamII ‘“ n < “4“” O” (’Q Cttltm L-Eowcrzi) Page 23 i8 28. A . ‘ e Illini rays were recently discovered as a new type of electromagnetic radiation and + assume that they possess extremely long wavelengths (k = 100 km). Comparing Illini rays 9 5 ' to microwaves (7» = 1.0 cm), which of the following statements (a—c) is/are true? A photon of Illini rays is more energetic than a photon of microwaves. The frequency of microwaves is higher than the frequency of Illini rays. F0) Microwaves will have a slower velocity than Illini rays. A ll 61" Q EMA ,g ‘9 [wit/5 d) All of the above statements (a—c) are false. 4- rO-V 6‘ t (1+ S“ M c) All of the above statements (a—c) are true. 3 P e 3&1 C“ ' elementwithto form agovalenpcompound. Which of the following is this element? 3 A ¢W&I lit-Helm karat I Unpcuirwq ‘3‘ p 69 be (if 0 “k. Inscuslqa‘v l 1-, * rztméswa‘c’s (“L-"Ll a) T] r S b) tPL 590))In/ I 56a 5P . The elempcfmugi- be a. HamthfiA grace {ice eleiaméu" ffa‘t WWI—k (LL {ducal—her (“alkali-u” {‘0 jh’fi Ck CSvmlen‘l- eamyowfl. 5 <9 \Lé‘g €/€Meu‘/' S I, rkla LUQJIA 6th. iabzifl Cebu/Oeunfl 30. Real gases do not always obey the ideal gas equation, PV 2 nRT. Under which of the W 5 4 Ll 30 30 following conditions will a gas behave most ideally? O ’ Liliane, 7' a) P=1.0atm,T=273K Read 30693 QQLum/Q Math?” b) P=0.50atm,T=200K . V C) P=2.0atm,T=400K (1+ (6L4! Pressurei (ll/Lg (g) P=0.50atm,T=400K {.émpemtlurg; AM“,ng kas ‘LLQ e) P=2.0atm,T=200K [awes‘f PressUra ckn£ w 14.} («93+ +em endure, $0 H- Aasw Canfli‘l‘lous {er 7&842’ ads behavior, 3 1‘ 31. Consider the following reaction atT=25°Cz H 8 H() I() 21-H() K 1000 EHIJl 2 g + 2 g = g = 3 . Lug] L1,] 22‘ I 7 29. An element in the ground state haslectron in theéfiatomic orbitals. The a; Q Which of the following statements is false? he value of the equilibrium constant depends on the amounts of reactants and . 4\r) products that are mixed together initially. K 7 S 6L CBVLS‘LQV‘“ £60} 59%;“ , b)T For this reaction, Kp = K. A h 2 g, -([ H) : (D _ c)T At equilibrium, the rate of the forward reaction equals the rate of the reverse reaction. ciaéki 4m: “CDT At ethbriuma [P1112 > [H2] x [12]» ‘ («as “(1.9 [lg ‘Lru Q {ram e720) lib-HUM (la-«pleas; err At equilibrium, th qoncentration of reactants and products are constant. 9%}! 17335 ien. M 5 WW: «+ '7. #_1090 __ £14513] 9 kacfl k >1} W‘PL-QKUMQra4or‘ — / (C4r32iMus‘F 5a (CM 6v" \LL‘QVK m &eu0m‘ma+ar (all Egg), ...
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This note was uploaded on 09/11/2009 for the course CHEM Chem 102 taught by Professor Hummel during the Spring '09 term at University of Illinois at Urbana–Champaign.

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Sp 08 HE 2 - Farm CHEMISTRY 102 Hour Exam 11 l. LID. .3....

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