Solutions_Manual_for_Organic_Chemistry_6th_Ed 78

Solutions_Manual_for_Organic_Chemistry_6th_Ed 78 - 4-37 t...

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Unformatted text preview: 4 -37 t � e nergy of h i ghest transition state d etennines rate --- -------------------- t t-Jl0 i s posi tive reaction coordinate - 4 -38 The rate law is first order with respect to the c oncentrations of hydrogen ion and of t-butyl alcohol , zeroth order with respect to the concentration of c h lori de ion, second order overall . rate = kr [(CH3)3COH 1 [ H + 1 1° (c) H H H --- 3° 3° � C H3 � 1° H 1° H ( d) H �--+-- H ......t--'r-- H (e) � H � 1° all are 2 ° H except for the two types l abeled 3° a ll are 2° H except for the two types l abeled H H all are 2° H except as l abeled 4-40 (a) break H-CH2CH3 and I-I, make I-CH2CH3 and H-I kllmole: ( + 4 1 0 + + 1 5 1 ) + ( - 222 + - 297) = + 42 kJ/mole k callmole: ( + 98 + + 36) + ( - 53 + - 7 1 ) = + 1 0 kcallmole ( b) break CH3CH2-CI and H-I, make CH3CHrI and H-CI kllmole: ( + 3 3 9 + + 297) + ( - 222 + - 43 1 ) = -1 7 kJ/mole k cal/mole: ( + 8 1 + + 7 1 ) + ( - 53 + - 1 03) = - 4 kcallmole 70 ...
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This note was uploaded on 02/27/2010 for the course CHEM 140 taught by Professor Wade during the Spring '10 term at Whitman.

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