46Ex4Key - Print Name Last ’fié-Wl1-£< First chM...

Info iconThis preview shows pages 1–3. 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 Document Right Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Print Name. Last: ’fié. -Wl1-£<'.. First: chM[ Page 1 Sign Name (Pledged): - " ' u!“ Disc. Instr. Name: Mitt: . CHM 2046 - J. C. Horvath \ EXAM 4 SummerI 2009 INFO: Usual rules apply. And this Exam is worth ??? points. So, up to ‘2? extra credit points can be earned. 1. Compare and contrast the antigpated behaviors of C032‘ andlvs SO32- as ligands towards TM’s. Note: C and S have almost almost identical E s. (In answering LS-premised arguments are reguired I Also note that many .) considerations apply!) I H a; _,_~ ,0: ” {cf “a 1 $9436 “‘15 I {stag Pia/53:9. =37“,€I+M“31§;.§®—-MW :2, fig‘gfihfl 9‘9” 3W— CBMLM' ‘0’ I?" a” " M4— , '0' ‘3' ‘15) U‘iwwmbmflwfihkhfaommmgdfiebav m, “a m“; M (I, an: e) 0 mm m w»? -~ :1»! aw M We: J” I; t a“ 1 ":- - “- (%)U)MMMMWM Maw 1C9 ’4 1 a. £016 ‘2‘ 1mm whim- aim [M W abate [3’0 5“ Wu Mama. 3 (wtbwcef'h \WHM Mmigaiw gain—0 MW W531” L11) awn—M abuse» MT M308 mm 9145 mumpsmawam, , war (a) «m WWW as. all. has», micawa Wm us m m 2. Compare and contrast the anticipated behavior of HSC" andlvs H3Si_ as BIL bases and Lewis bases (ligands) towards Pt and Au+ . \ x v —&23 «this «81:9 9134‘, ,oth arse!) W w eighty M”: Md / I ® Wraancoaem @m C. Watt. MMM a’fdaw L. (BMW EM (Casi) “F “‘5‘?” (Cilia? Mince. I 3:64 3MM=3)W;12J (15) Mn Nan Sat (20 ’i-amob an m an? We? ma— ch} ism man"; 1:4 Wwinawd' gust” .3, gm MW <5“- )OM-e gm 34 m MT we set mks “WM emu. em.» Q manual” 50 Minced Q) 3'1: W beam 311 W“‘W CT MAI-wuska Mao +M‘M'. mo w mth: ' *Mheno era-W 3.a Which d orbital giddae used m cons ructin a ds h‘jybrid igfitrligogqa‘l bipyramidal TM complex if thg’xy plane coantains the equatorialiy-oriented ligan ? y . x3 ' Sin} oL only dM-im :va ‘2“er «la-"43") ohm) ‘ szgg: ii 4. die. Moe gmvfiwe Wbehéiib (tubes) «3h ‘5} 0‘0"“? a“ \Owbj Wdchaw m t mis in «Map w, u»; 0’ Mg m amis seams as. \. (mm!) b. Determine the splitting pattern for the ail-orbitals in trigonal bipyramidal crystal field if the xy plane contains thflgpatoriaW. Briefly explain the pattern proposed. 3’1 311— +flM-‘am0. Wed/k Wblmm $3M E It i: 1:. ELM/Ladatidgafmfifi+wwmjmwwwm . (10) 'w *2: iv 32; «710M94— w. w mam: Mugs mama‘s. M W ...'..‘_.:£. W d‘cww dia'jfl‘dri'fi. one at» W1: (ct-3.329 Jib-Ada i; 'ai if" Berton ififis \oLuvaf 911341”- wi“ he hunk-M 54w Mmhfim; 134119.). CM? 4*" l V. M s b . c. A gtab e, t onal pyramidal complex of an unusually low (0) state TM'must be :1 3 hybridized rather than Sp d hybridized. Why so? (Hint: What is the nature of the valence-c configuration or such a complex?) .301ch W014» GM.Ad’aUe is? WM NG—S Wit] 0mg“? $ L9 vol, 6"}4— WWW “W'Q’W‘W d’ djawag' 1L...” apt HEW a “2) iki—lsfladhtLEE: kit-iii!— M 3d-—v—' . -| W 0mg. Miklkfik Print Name. Last: ’ “It gag First: 9W, Page 2 4.a Consider the com onnd Kth(Br)(Cl)3(I)(Ol-Iggswhich corresponds to a varie of stereoisomeric octahedral complexes of rh “um. Write ula for compound so as to indicate e formula for the complex, the (O) sta ' ' this compound can t contain all the water in the “1st coordination sphere”. m waucminmj-zm we. ma. «awn u. rat-z. iwcflfi-wqwm MWAW~ "3 (lo mam-1.2:.th “a’rqfiim 3 data— b. Sketch ne 1! all geometric isomers for the complex and also sketch the mirror image of each that is optically active. (Wrong or repeated sketches detract fiam credit!) Note: Correct no. sketches is <8. 5 \ fl Rktfiléncem MW“ 1;... cl Qt. ' lg, cl ‘ l l (15) I w l a q “"3 5‘ “Ml 1' 1t ‘. ' l (:1 cl q \E \ Cl Name the‘ - omplex. WMéulnfr “g, V. g (4) ‘bww « WCWMwWfi‘cfifixmfunthrG/qu W L'““‘"‘”‘” V") d. Given that all ligands in this complex are “weak eld”, is it expected that this complex would readily react by “one-electron” oxidation (i.e., react by redox and lose one e ). Why or why not? . 0) U. “Wrfinlglvlnli £30 ' We“ «:2 41a 417 we“. ‘1 '1 .'-.WE>A3P W ' kal‘: 1"" 19.3.1. (10) ' ,emm chE (3-. . Q acne) with? MM 44aka - W h . a M W W krcmaww @f a water soln of this compound is prepared and treated with excesslMHQNQg-shouldthe com ition of the complex change on standing for a long time? ote':--N05*li”as negligible “liganding” ab: .) efend. ,0, u ®If this compound contained corresponding complexes of nickel, would they likely be riib'ré stable or l'es's stable? . Why? ‘ k g - EA Mal/[m (Mam .J. M 9 ‘ r . . . .1 1. (5) mm“. (M w, Mad/twirl 1;};- W (pin! .a .9434]? W was FNJ‘W):4G£M swwwiifi —W|A’h'~ WWB‘M'W e1? (54" n " ‘eacm’éfibwfl dul— all: Hi!” Val, olefin 5. Consider: (3))F (H3C)2NCH2NFCH2CH2NH2, and (C) CHNH- With which of ese ghelating ligands Is the most stable chelate ring obtainable? Sketch the ring (use llamas the metal ion) and defend your decision. (Be sure to consider all factors of consequence.) (1: “We” l_'\ C17) F \ ' “Mute 1330' Value“, Mlearfixa”MLJv l} 1‘!“C‘/\ K ill-Ml"? {blhbzllMWIaJm and) “was W \C/ - ¢\ Maia». W69.) wumm-WWa/L as) r \ . 1 mew-N w» . 3. MW” . . , N...- ---aw..;lj to. co. 113Mch chm/H7 Ml») W5! .ma meeweatgwmf 6. Consider: a.H2NCHZClrIZNHz, b“; HZNCHZCHZNHCHZCHZ 2, and 6.Iachnzcnzhnrlcnzc19m“z HCHZCthll-Iz. With which chelatin hgand will a water soln of one mol of the compound that is considered in Q.4, above, give the most favorable ange in A5,? Defend. '5. gm a, Leml 93 3am die 4' [Rh Lam yaw-3 f; qflfiw‘éu Mrsqu #MHukfla—Vtv gm C'. 1%; 4— {mandamus/5.3135.» ifiawfikfilwa‘fi hr an} Zdlné' 1M A S'den— \ 1" 4k \a . amer ‘iRthV19fifl‘l3 L12) [Milli-3 Raktwfifl“ a- 9.5} =36";- a's w amp-saw :2; MM Ira. Ma. a; mam—“Mg (15) ' Print Name. Last: “figyvfilzd' First: éfim 3g] Page3 7. For (an H2804 soln, if 2 [HSOf] = 3 [8042'], to 3 SF what is Mi in terms of Ka(HSO4' )? . Show pertinent work. {in tag) 15m, #1911 M3 :— Euseqj 4- Stags-:1 :2 9. .5 [903']. [$9sz g -..: was“, H“. ex: mesa m + was s m “£4: “A “was 4— Etsosfi nj—iwfl'sm—fla’» (8) 2mm; ... 5-,... . . 2f .. - . . . *-——='+' ,. '2 o.’ WWW = Lflmi awe-MW ‘ 2-5 W4” fume] "“ WW :2 0.48311; & mg 1? 2(‘071fi a £933 8. Indicator HGV is yellow at pH 1.4 or less, green at pH 2.1, blue at pH 2.7, and violet at pH .2 or higher. So, if 100 mL of 0.3 M HX is treated with a drop of this indicator to give a color within the yellow-green range, how do the BIL acidities of these acids compare? Show pertinent work and defend all conclusions. 4, {[33 at]: - | “3' o _ .. {wow/2 my 3.2; UP a at? 2.3 v- ysie wimfi ‘fé a L5131u3¢flwg$ 3x1?“ . I ‘ (843$ ‘2 W -mt+§~v=2-mm.. ' M Tux? 03.3, _0‘¢3 ‘ .. 2 ID at . . ' . :r. ‘ F Guatemalan» A»... gCWngWMalfiflfi-Hw :2 33:35.3: 3x” ’9 jihMHX 5 3M. 9.a If 500 mL of 1.0 M HF is mixed with 500 mL of 1.0 M NaZSO4, calculate the resulting [F'] & [HSO4'] values. Showwork. . . ao- n a _ ... GUM: l” J- .90 a . I y” .. Wag? 6:51; *9 meefleiai; “Kt 7 (pg) * 4< w- ’*"’3'i+ “ “ .. tamer!" mm‘ (s>fl_2§_-éfl—°—-=£sxtb 3 X‘ as X a. r ’ a“ ‘r Lem-o" 0440‘ [Te—Jae” 131$ 3’? 13"” “aw-4129‘ "£0.19! b. If HF is reacted with SO 2‘ on a one-to-one mole ratio basis (this is the rxn occurn'n in a.), is it possible to establish conditions whic will cause this rm to proceed to an extent of 50% ? Defen your answer! Ne! IF Hm; MM W 53%, [ll-Ff] ems] +im°j «PYAF‘j W as '2 6,50. ‘B’utlm‘fice ’KJLWM: $12 If, Mafltéwmjmuei; MW‘M hi‘fl “2:: 61d” {Miperfi He, 10. The bond angles for H30”: H20, and H28 are ~107°, ~105°, & ~92“, respectively. Provide a rationale. "s 1“ i 3: P u a. “raw “10m “15w wndzul M be? 1'71» (96» Wet: Mfzd’ L a [F W’ ‘4 1M M3 "lab? @bfflirwbhnm ‘> “m H30+mt a mi Mm. {what on... u.» 4. [4,; w. 1. was... Maple. MJML M 4 5.1.12. in anemia musk emu] éz. m. M Mm m4 5 J rPWSmk P mmonghMflkw-WWMMJMLJHM. ‘ 11.a For the novels ecie 7 I 2', writean acce table LS,identify central-atom hybridization, and determine 1: elm—51M. 18's g:metry mgfidmg an indication of ill 5. 0nd angltt). I: “If? 31; 2h. w- if mp1. W “’ ' .- " -~ ' (riava W-afim‘hbp‘ktfl . @ ~Xe~cfl Mew 3 _. - $6 19! _ fl __ _ 3 I A “*7, Ctrrleafll =22 we" we" _ at "0‘75 (*MW/ 5.9% (6) 10 ° _ MW P, M ( ) a $2 $5190 :I 3'7 F I: )0 b. Sketch the stereoisomers for this'species. Are any f these opically ahtive? If so, sketch its mirror image. (10) q— “fig—cf Price; F CtZég— t“ 1. F-Zte eel 6—» c.L..x;e..§‘ fl "‘ .. " a: I 13, A; “a 9? chl ClFl'.qF Fa, opt . 12. Based on MOT, are the respective oxidations of molecular LiO ) and NC" to I...i0+ and NC favorable or unfav- orable? Why so? Are these processes likely of the same favorab' 'ty/unfavorablhty? Prov1de diagramed MOT analysis to support your answer. (Remember: For species containing 0 & F, the E ’s of the 02p and 7121, MO’s Invert relative to those for other penod 2 diatomic spec1es.) U0 é» q Wt fly. Ida—Z" w Uni ’c_ ,3“ 5mm, was. up «’24 we; (8) , é: -' ,-_= 4—L —» 4‘» M06510 . 0-- :45" Wk; a» L30 1'? twee t5.» no ,M. . M M hm..me E“ Luff“ fikwhuos 13. Write LS’s for m e‘fing- tructuregisomer’s‘fi'gtthe hydrocarbonf3C41-Itfi which contain mg structures andan OJ. ‘. comment on the expected stability of the isomer which is exclusively a 4-atom ring. 4—“; k W c- ~te+eu *e' a): c—- M " . WW “:7 “f u (‘th I S b C \ 1ch-m4f;mogfl_ (8)..» “Que” inc! \ _c ‘ctu I Ce, 1' 1‘1‘4 W419"! 161%— — at I A 1 ' " ’ . llcrcq mafia: asymmu, 70- .., C see must... :5 l r \ t l ’ Whosgflmn ...
View Full Document

{[ snackBarMessage ]}

Page1 / 3

46Ex4Key - Print Name Last ’fié-Wl1-£< First chM...

This preview shows document pages 1 - 3. Sign up to view the full document.

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