163s18qz9key.pdf - 1.163s18 quiz 9a 8 March 2018 section...

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Unformatted text preview: 1.163s18 quiz 9a 8 March 2018 section: name: E9# (716; l fl’ossibly useful information: Please use the colored reference sheet. i: 1. (3 pts) This question has three parts. Consider the molecule sulfur dioxide, S02 The Lewis structure for the f-mo‘lecule is given. Note: the structure does not 11y to convey exact molecular geometry (shape). structure 2.5 3,5 .. ' molecule .. . S - Q ‘Oowck PCJULV l and Lewrs ' ' A E“ 3 170 l AXLE—1 3gpm-e/(‘f‘7 0V\ S \;J\ 301 “:9 poLCur pariah E a. i (1 pt) Is the molecule polar or nonpolgzr? i2”! our . b. (1 pt) Based on the structure of the molecule, what are the predominant intermoleculaffurces between . SO; particles? Please circle your answerCs). , dipole—dipole London dispersion forces ' hydrogen bonding . . M -0 ' . 9) \ vn LL ?é\.r Lil-2'5 .- ‘ C.“ F O Lfiur WW‘W (1‘15 i): .. {:- 5 . '-7(1 pt) Please explain your answer. PLEASE PRINT. ‘ H'N __. %\ ‘HAJ, WLoULWLL ‘\,5 thi— WMWWL‘XACJK ('U idm Pant—)5 VOW pathCj-fiow “"‘;'2_ (91.12.3153) Consider the diatomic molecules H2, HF, HCl, and I-IBr. Lewis structures are shown for each ' Mflgf , molecule. Please complete the following table. Decide first whether the molecule is polar or nonpdar. From :52? “LL- ;: that, decide which type(s) of intermolecular forces that molecules in a sample of each compound experience. ., Marl: an “x” in the boxes that indicates your answers. For boxes that are NOT correct answers, please mark a MAL 7,“ f",—- ”. Using H; as an example, we have marked the appropriate boxes. :Fum; 3. (1 pt) Consider the following balanced equation. Put 21 Q9}; around the REACTAN TS and circle around the ‘ PRODUCTS. ‘ 2 Li (s) + 2 H20 (z) 2 LiOH (aq) + H2 (g) j ,4. (7 ts) Balance each equation using the guidelines shown during class. ' a; LIZ Mn +___3_..02 —~> 2:...Mn203 ’2. (22115 + 1 02 —-+ Z co2 + 25 H207 '. '1: . (K2450 . 63/‘0 ‘ . ' flextra c'" edit: (1 pt) Consnler the particles dzmethyl ether and ethanol. Both have the same chemical feimula, €211.50, but their atoms are arranged differently. The snucture of each is shown below. "1 0' H30 302 3‘3 ‘ \ \ / \ - H3C CH3 H20 .11 . dimethyl ether ethanol ; Bothngiplecules are polar, with AXzEz geometry around the oxygen atom. One compound boils at ~24.0°C and :.the 61:11:,r‘hoils at 7 8.4°C. .\ - a. Which one of the one of the compounds boils at the HI GHER temperature? -: H/wwai b. Why do you think this is true? Please'TRINT your explanation, including in your explanation what _ 121371335 of intermolecular forces of attraction are present in 3a sample of each compound and how that plays ' ' a role in the boiling point being higher or lower. ‘ 2.3, \VWAAANTK WW I £5 & Q‘AAV‘ WydLLU-JLKL ._— ”1* MS Low» V1 MS WA Axéuh r-CX‘QJJL ; W's ’ ' {Adam/mi W5 VW‘F 0‘4le Pukaw‘ {chair fiLKSa [4.515 ‘1 H‘leREC—TLY mici‘adaci 1'73 C111 03;“ I "\Jr has Lamina wLLaA'kgwhfi A‘kéok/ MD Wain: £5 \QC’V‘CQCA. GS \‘IW‘fovaoLlwkbf QZNZDJ L W five mm \i “Fabflw :adkLtAfL-Q'S O Canoi ‘ o g. ==~ ‘~ .1 K gm , WWVW‘S V‘— W Akfiq’éhko’idic able St'\i:"l'i\£§El<amen’cg‘LLL . “‘17) ‘9 \ Mk. (I J 9 L 1" ' ‘3 ”my/Luv BA - 2 He ‘ 4.00 2A 3A fiA 5A 6A 7A H 2 13 14 15 16 17 1.01 ‘ 3 4 5 a 7 a 9 1o ' U Be 3 c N o F ’Ne :_“‘- 6-94 9.01 12.0 14.0 15.0 19.0 20.2 :1, H 12 1 13 14 15 13 17’ 1B Na Mg , AI :: s; P '5 C! A” '1 23.0 24.3 31.0 32.1 35.5 39-9 31 32 ”33 34. ‘35 36 Ga Ge f As Se Er Kr .4 39.7 72,5 79.0 79.9 83.3 51 52 53 54 Sb { Te I XE 122123 127 131 33 3 35 3! A 35 f Rn 209 (203) (210) (222) . - 81 82 l 07 1. ' .. .1? ' 163'31‘351'quiz 9b 8 March 2018 section: ' name: \4‘61 (l b :‘POSSibiy useful information: Please use the colored reference sheet. ' 1. (3 pts) This question has three parts. Consider the molecule oxygen (lifluoride, OF; The Lewis structure for ‘ 3'the_'rndlecule is given. Note: the structure does not try to convey exact molecular geometry (shape). . -!‘V‘ _. 1. 3,5 the molecule . .. 6.. F \QMA POLK“ and Lewis : : _ 1 structure AEN = 0L5 {£5 . MAMMUL ' ‘ a. (31 pt) Is the molecule polar or nonpolar? Pglauf .’ b- «$1 Pt). Based 911 Th? Sfiflcflll'e' 0f the molecule, what are the predominant intermolecular forces between I ""ng particles? Please circle your answer(s). . London dispersion force . dipole—dipole . hydrogen bonding f~ , %w' Lu, 0K ugkrhgig ‘ \k‘ Qubur \QérE'ALS VV) Ii": ' I , c. (1 pt) Please explain yo answer. PLEASE PRINT. . . H“ N 0?; is a paw mallard be¢%KWm perm OF Lamas My %..wél-ka¢ l3 Wol- svmmlv‘uiol ELM. l‘D tint; Z [W PKCV'SZ' Favor mduwlu k‘W‘L LOWW 5 2. (9 pts) Consider the diatomic molecules H2, HI, HF, and HCl. Lewis smictures are shown for each ifiiméah S 13 ”I"? , oleo fife. Please complete the following table. Decide first whether the molecule is polar or nonpolar. Fr m ’ that, dagoide which type(s) of intermolecular forces that molecules in a Sample of each compound experience. - Mark a'n'“x” in the boxes that indicates your answers. For boxes that are NOT correct answers, please mark a i“~.+—— ?’.- ‘EUsing H2 as an example, we have marked the appropriate boxes. " '3. (1 pt) Consider the following balanced equation. Put a fl); around the REACTAN TS and circle around the PRODUCTS. , I l 2 Cs (3) + 7; H20 (2)! 2 CsOl-l (aq) + H2 (g) " ‘ . 4.. (7 pts) Balance each equation using the guidelines shown during class. 1a“? anog» Ll Mn+ 3 02 Q2) IO ‘5 claim“ .EHZO ‘ . 41.360. 10 3’0 .» extra credit: (1 pt) C0n51der th particles (limethyl ether and ethanol. Both have the same chemical formula, CZHGO, but their atoms are arranged differently. The structure of each is shown below. b; {’1 C4Hm + "”0: H30 1°01 / \ \ / \ H3O CH3 HiC H (linzethyl ether ethanol Both molecules are polar, with AXgEg‘geometry around the oxygen atom. One compound boils at ~24.0°C and theotl‘fér boils at 784°C. ' a. Which one of the one of the compounds boilsat the LOWER temperature? Q 5 ma; {HQ j A ~£ HQ 2 I: b. Why do you think this is true? Please PRINT your explanation, including in your explanation what types of intermolecular forces of attraction are present in a sample of each compound and how that plays arole' in the boiling point being higher or lower. r AMWH/V‘K aid/war ‘\S_ A. l? (9me woLuxsza "“ ‘3“ has Lama m4 gums “Ami OLLijaLu, - AAQBKL’X’DV‘Q'S . Ofififi‘U/v- l'l‘ W8 UWAJ‘A Sada, oLL~ulC~6lteak ) aux/«l MAW-OWL“ [an/«(11 ‘54 bald? -VrdfivaA’ gas). '21:“ p‘gefr’logi‘co'étble OEWEEIBW‘K Mdb’w‘q 0‘: FAA/6333‘ MEWj 1 1A m L um: Mal haunt «12, 5342., M Matty”: WA“ .5 fig ML“ 2A 3A 4A 5A 6A 7A 2 2 13 14 15 16 17 He 4.00 5 s 7 3 9 10 if: B C N o -’ F Na ‘1'” 12.0 14.0 18.0 18.0 20.2 31 14 15 1e 17 15 AI Si P s (:1 Ar 27.0 31.0 32.1 85.5 3919 e s . $53 1. 1635.13. quiz 9c 8 March 2013 section: name: he?) q C ' Possibly useful information: Please use the colored reference sheet. 1.7 ~(3 pits) This question has three parts. Consider the molecule oxygen dichloride, 0C1; The Lewis structure for fliefinolecule is given. Note: the structure does not try to convey exact molecular geometry (shape). ”5:3 in , .O“CJl loo/wk galaxy AXZE‘ SGML"? cm 0 in calf» Wot” mama ...' g i “a. (1 pt) Is the molecule polar or nonpolar? . 0 \LV 6 - arit- h. '(1 pt) Based on the structure of the molecule, what are the predominant intermolecular forces between ' 0C1; particles? Please. circle your answer(s). London dispersion forces dipole—dipole ' hydrogen bonding ’ . s . “O W on 0x. l “Thai—M PM \\4 Vulgar Parhclq lac it- i: 0' (113") Please explainfiur swer. PLEASE PREV , mi- CS 4‘- P’IA‘W’ NLQ’U‘LL‘ SQLW W O‘Cl \OMAC'\> ()th “VJ M mdfi . LJWuLi‘b “hide Low; partial mehéhghwe, Lou‘Jauw FIN‘CJLS OLD-11 (lgiek-‘ckkp‘ch 2. (9 pts) Consider the diatomic molecules H2, HCl, l-IBr, and HF. Lewis structures are shown for each 9mm; molecule. Please complete the following table. Decide first whether the molecule is polar o‘r nonpolar. From that; decide which (was) of intermolecular forces that molecules in a sample of each compound experience. Mark an “x” in the boxes that indicates your answers. For boxes that are NOT correct answers, please mark a .‘-“—-— iifillllsing H2 as an example, we have marked the appropriate boxes. London dipole: “hydrogen dis I ersion d I ole bondin; C“) Ad'i‘ . " . molecule - EM Fla-#56 x x . I 5". >=- 2: : at. .2 '1 ' r ‘ 22" a = )4 '.¥.. - 1- ‘ ‘x’-. . ' .‘;_.r‘ l .I y 155$; . ' l p . CI“: 3 (1 pt) Consider the following balanced equation. Put a [19; around the REACTANTS and circle around the manners. . _ . - - l 051(3) +2H20(£)l—+ 'a(O}I)2(aq)+H2(g5 ' f. if: 4. (7 pts) Balance each equation using the guidelines shown during class} I a; 1‘ .Cr203—-> Li Cr+ 5 02 ~ \2 W .'=-5;..-..Z (361.1144. Vi. 02% g (302+ g/ H20 "'_'15- , 7% ’12.? (3). Hfi'fi) ' _ ' extrafcrerlit: (1 pt) Cons1der the particles dimez‘hyl etlzer'and ethanol. Both have the same chemical formula, ; C2H5Q§_but their. atoms are arranged differently. The structure of each is shown below. ‘ 9‘0"- H3O *0": . :‘fi '_ / \ \ / \ . 1 W‘ H3C CH3 . Hzc H l ' (lime‘tlzyl ether ethanol 5' Both molecules are polar, WlThAXzEz geometry arbuml the oxygen atom. One compound boils at —24.0°C and ; {gt-he other boils”: at 784°C. ‘ a. Which one of the one of the compounds boils at the HIGHER temperature? {fin g, m a l ,1. b. Why do you thinlc this is true? Please PRINT-yum explanation, including in your explanation What types I pf intermolecular forces of attraction are present in a sample of each compound and how that playsa role in -- ‘ the tiling point being higher or lower. 1‘ lasetvefx‘r Re New WWW 44? l'wS LWJL‘M Earths M ol-Lérabuéle M3; .‘ >-_ ~ L bl‘mr 5 low? «L50 has 0; H fill-um AKNLHIYA‘l-Wk 6)“; gm —_— V U" \zka LuDMJhDV‘ We); oLL-éah, “jolteblt gbrcehiamj ‘AAIAL'mfle‘A- 561441.13 «'5 "L-vxlxelrmahyduf gm ' -::‘v- ‘ ‘. . Wm aw. MW “WES WW Wmlemtw al’ 540%“! .wuelgccj 114—“ V'Uij allkqlfionlf W «LUNA/wok Miami in ion—"xi :zfi an—L l’JMlle 2‘01 \m’lC‘ k5 Vufll/xef ' ' ‘ Periodic Table t 9 Elements ' 18 1 . 1 2A - 3A 4A SA SA 7A H a - 13 14-15' 15 17 o : 21.. . ...
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