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Exam2.WhiteVersion.S06

Exam2.WhiteVersion.S06 - Exam 2 White Version Chem.1C 2006...

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Unformatted text preview: Exam 2 White Version Chem.1C 2006 l. (4 pts) Give the oxidation state of the central metal atom and the coordination number. Qxigtion State Coordination Number [comH3)sN02]C12 + 3 6 2. (4 pts) Give the formula for the following compound. aquatricarbonylplatinumfll) bromide “P E (H19) C0 3 5 r2 3. (4 pts) Give the systematic name for the following compound. [CM3)4Br2]N-O3 tetra: amrm'ne 0H brfll/VIO chromium (m mi‘EraJCe 4. (4 pts) Draw the optical isomers for [C0(NH3)2(H20)2C12]. Q B \ Q Q \ 5. t 10 pts) Circle true or false for each of the following statements concerning the complex ion [Co(en)2Clz]+. en = ethylenediamine= NHzCHzCHZNI'I: a) The complex ion contains Co(I)l True b) The complex ion has cis and trans isomers, but no optical isomers. True E c) The complex ion has cis and trans isomers and optical isomers. False d) Since ethylenediamine is a strong field ligand (large A), the complex ion is paramagnetic. True [E e) The geometric isomers of the complex ion have identical chemical properties. True E €034,301 é 1.111.114 Obi‘amagwit 1 Exam 2 White Version Chem.lC 2006 6. a) (3 pts) Draw the d-orbital diagram, including the electrons, for low spin K4[Co(CN)6]_ [2'0 ( CM) 6] ‘1 ‘ 002+ 3d 7 ’l__ __ ociahedrai 4 v 11 ll: b) (3 pts) Draw the d-orbital diagram, including the electrons, for tetrahedral, high spin NasziCh}. Z __ ~ 2 + 04 3‘ F“ [MCI H] N' 3 4 1. 1. 4 ”lb 7. (10 pts) Which of the following names are correct? Circle yes for correct names or no for incorrect names. a) 3,4-dichloropentane Yes b) l-chloro-2,4-methyl-3 -ethylcyclohexane Yes E c) 1, l-dimethyl-2,2-diethylbutane Yes [E d) cis-l ,3-djmethylpropane Yes e) 2-bromo-l -chloro-4,4—diethyloctane Yes No 8. (10 pts) Which of the following are structural isomers of l-pentene? Circle yes or no for each. a) 2-pentene Yes No cHL =6chz CHZCHZ C5 H I 0 b) 2-methyl-2-butene Yes No CH _C:CH Ci'L-g c) cyclopentane No ‘3 e H; - - - N d) 3 methyl 1 butenc Yes 0 C’ H3 e) l-methyl-cyclobutene Yes ll‘lo E if C 5 H 8 9. a) (6 pts) There are three isomers for C2H2Clz. Draw the three structures. If you draw more than three isomers cross out any isomers that are not part of your answer. H\ ,0! il\ /H I{\ /c( C I: C C : C C j C\ H C’ C - c l c} b) (3 pts) The compounds in part (a) have different boiling points. Draw the isomer which has the lowest boiling point? H C { no r: v polar \C c / L DP :5 2 / \ weaker Ci H m tarmalflbdm 190mm Exam 2 White Version Chem.1C 2006 10. (4 pts) Name the following. CH3 C=C C1/ \C1 . — — ‘ I ~ ’ Name: at; Q 3 allele 0rd 2 buiene 1. (8 pts) Draw the structure for each of the following compounds. a) 3-methy1-2-hexanol ?‘ H CH3 CH CHCHZCHE CH3 | 6+5 b) 1 -ethy1-3 -methylcyclopentene cHZCHJ \ cw 12. (4 pts) Identify the type of organic compound shown: (CthCHOH Circle the answer. a) aldehyde P i . 1 . b) pnmaryalcohol K - C _ 0H i c) secondary alcohol l 13 t d) tertiary alcohol e) carboxylic acid 0 none of these 13. (9 pts) Draw three isomers of CsHmO that are ketones. If you draw more than three isomers cross out any isomers that are not part of your answer. 0 o “ " H <956¢cwccH3 CN§C$CCH%?3 0 [I CHCCH CH; . s 6% Exam 2 White Version Chem.1C 2006 I4. (4 pts) Which of the following solutions is most likely to show positive deviations from Raoult’s Law? Circle the answer. a) hexane in octane c) methanol in ethanol d) sodium chloride in water e) methanol in water 15. (10 pts) At a given temperature, you have a mixture of benzene and toluene. At this temperature, the vapor pressure of pure benzene is 745.0 torr and the vapor pressure of pure toluene is 290.0 torr. The mole fraction of benzene in the vapor above the solution is 0.590. Assuming ideal behavior, calculate the mole fi'action of toluene in the solution. a 0 PB : 7&15.0 {Off- PT : agar? {Off VMP Vi XV“: 0.50] xvaupfl 3 PB 8 ‘3 ‘- mp vow 5" 7“ “is "i “T B "i — 7 XT‘ a a a 1:» PT : XT l"l' a x P E;— ,— 0.567 x3 4- X1“: I :’ 0.55] (v X.) yqs {m + XT CW *0") (J —xT)7L/5 lorr 7H5~ 7L,rsxT :. 0.15:7 (745-9539) 305.5 I 976.629. EXT: 0.6Lfl ...
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