FinalAK - Copy

FinalAK - Copy - 1. Fill in the blanks from among the...

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Unformatted text preview: 1. Fill in the blanks from among the choices provided. If you believe that more than one choice is valid, choose the best answer. (30 points) a. An acid with a pK^of 4.76: CH I coCil1 choices: HCl, NH3, CF3COOH, CH3CH2OH, CHTCOOH, HzO b. An ionic compound: dt 0Crla choices: BF:, EtzO, CCI+, C[L, CH2:CH2, NaOCH: c. A Lewis acid: B F: choices: BF3, Et2O, CClq, CH+, CHz:CHz, NaOCH3 d. A typical value of a bond dissociation energ ,, I 0 O Vcql f^' t choices: I kcal/mol, 3 kcal/mol, 10 kcal/mol,30 kcal/mol, 100 kcal/mol, 300 kcal/mol e. A typical energy barrier to rotation about a carbon-carbon single Oon6' 3 l/co I /qo/ choices: I kcal/mol, 3 kcal/mol, 10 kcal/mol, 30 kcal/mol, 100 kcal/mol, 300 kcal/mol f.Achiralmolecule: 7- uLrlorohcy e n4 choices: 3-bromopentane, cis-l ,3-dichlorocyclopentane, 2-chlorohex ate, 2,3-dimethylbutane, methylcyclohexane, I -propanol g. A typical carbon-carbon bond length: l't fr choices: 0.5 A, 1.5 A,3 A,5 A, 10 A, 15 A (Note: A: angstrom) h. A good reactant in an SNI reaction: l-C''Ltlor"o- l-nclu'f c?"(olnQ,xrre choices: iodobenzene, 1 -chloro- 1-methylcyclohexane, 2-fluorobutane, CH2=CHBr, I -bromohexane, chlorocyclobutane i. A good reactant in an SN2 reaction: I - bv-on o\ef', ne choices: iodobenzene, 1-chloro- I -methylcyclohexane, 2-fluorobutane, CHz:CHBr, 1 -bromohexane, chlorocyclobutane j. A good reactant in an El reaction: l-thlo., -l-nrlL1b7r(o lnrF, ne choices: iodobenzene, 1-chloro-1-methylcyclohexane, 2-fluorobutane, CI{t:9113r, 1-bromohexane, chlorocyclobutane 2. Write the missing reactants, reagents, and products in the boxes. If NO REACTION OCCURS, write N.R. (18 points) :'-S:=2 + 02, combustion l_l- :,.S-.-z 4CO2 + 5H2O NJ K, of I ,^., r,s ,^-,/\CH....
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This note was uploaded on 11/11/2010 for the course CHEM 51A taught by Professor Sangodkar during the Fall '07 term at UC Irvine.

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FinalAK - Copy - 1. Fill in the blanks from among the...

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