The following graph outlines the mechanism of an SN1 reaction. Energy AE R R-C-X+ Nu: R R R-CO R AE Nu: Reaction Progress Accordingly, it would be correct to state: -AE R R-C-Nu R - The carbocation has lower energy than any transition state. - The small activation energies show that it is a thermodynamically favorable reaction. - The formation of the carbocationic intermediate releases energy, which is why it is thermodynamically favorable. - Represents a reaction that occurs in one step where a pentavalent chemical species is formed.

The following graph outlines the mechanism of an SN1 reaction. Energy AE R R-C-X+ Nu: R R R-CO R AE Nu: Reaction Progress Accordingly, it would be correct to state: -AE R R-C-Nu R - The carbocation has lower energy than any transition state. - The small activation energies show that it is a thermodynamically favorable reaction. - The formation of the carbocationic intermediate releases energy, which is why it is thermodynamically favorable. - Represents a reaction that occurs in one step where a pentavalent chemical species is formed.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Draw a structural formula for the intermediate in the following reaction: CH₂Cl₂ Br₂ • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • Do not include counter-ions, e.g., Na*, I, in your answer. *** ▼n [F ChemDoodleⓇ la
1. For the rearrangement of cyclopropane to propene at 500°C, the following data have been obtained: [(CH2)3], M (CH2), CH,CH=CH2 2.98 x10- 5.55 x10-2 1.60 x10- 8.56x10-3 time, min 15.5 31.0 46.5 What is the rate of disappearance of (CH2); over the time period from 0 to 15.5 minutes? 1. a. 0.00166 M/min b. 0.00127 M/min 0.00101 M/min d. 0.000890 M/min e. 0.000480 M/min C.
A mechanism that has been proposed for the conversion of 2-methylpropene to tert-butyl alcohol in acidic aqueous solution is: step 1 slow: (CH3)2C=CH2 + H+ --------> (CH3)3C+ step 2 fast: (CH3)3C+ + H2O ---------> (CH3)3COH + H+ (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. ____________ + __________ = _______________ + ______________ (2) Which species acts as a catalyst? Enter formula. If none, leave box blank: ____________ (3) Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: ______________ (4) Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k[A]m[B]n... , where '1' is understood (so don't write it) for m, n etc.) Rate = _______________
The cis and trans 2-butene stereoisomers have the following rate constant values associated with the electrophilic addition of water in an acid medium at the same temperature. what is the difference between the two values through the energy profile of each reaction. CH3 H,O productos H+ H3C k = 3.51 x 10- M's1 H3C CH3 H,0 > productos H+ k = 8.32 x 10®M's1
Below is the equation for a nucleophilic substitution reaction and some experimental data. CH3CH2Br + CH3COO- ⇌ CH3CH2CO2CH3 + Br- ΔH=-75 kJ/mol Rate = k [CH3CH2Br][CH3COO-] Which reaction energy profile would be the best representative of the data provided?
Consider the following elimination reaction. CH3 H CH3 CH3 slow Cl step (-CH) CH3 CH2 Base c=CH2 E1 -(H-Base) + CH3 CH3 CH3 The experimental data obtained clearly displayed that the reaction exhibited first order kinetics, and therefore was determined to follow a unimolecular elimination (E1) reaction pathway. Draw a fully labelled energy profile diagram that clearly shows each step in the reaction. Assume the reaction is an exothermic reaction. Page 4 of 5
[References] Use the References to access important values if needed for this question. A mechanism that has been proposed for the conversion of 2-methylpropene to tert-butyl alcohol in acidic aqueous solution is: step 1 slow: (CH3)2C=CH2 + H+ → (CH3)3C+ step 2 fast: (CH3)3C+ + H20 → (CH3)3COH + H+ (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. (2) Which species acts as a catalyst? Enter formula. If none, leave box blank: (3) Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: (4) Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k[A]m[B]n... , where '1' is understood (so don't write it) for m,n etc.) Rate = Submit Answer Try Another Version 3 item attempts remaining
Consider the following mechanism for the reaction between t-butyl chloride and water: + (CH3),CCl(aq) - (CH3), С"(аg) + СІ (aq) (1) 3 CH3)¸c*(aq) + H,O) → (CH3),CHOH*(aq) (2) 3 + + (CH3), CНОН" (аq) + H,O() — (CH), СОН(аq) + H,о "(aq) (3) Write the chemical equation of the overall reaction: yes 0,0,.. Are there any intermediates in this mechanism? no If there are intermediates, write down their chemical formulas. Put a comma between each chemical formula, if there's more than one. O O
classify the following reaction C2H6 + O2 -- CO2 + H2O
Draw a structural formula for the intermediate in the following reaction: CH2Cl2 Cl2 + • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include counter-ions, e.g., Na*, I", in your answer. C ору aste APR étv P MacBook Air 80 888 DII DD F3 F4 F5 F6 F7 F8 F9 F10 $ % & * ) 4 6 7 8 9 E R I Y U
Draw a structural formula for the intermediate in the following reaction: CH2C2 + Br2 A You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include counter-ions, e.g., Nat, I', in your answer. In (F ChemDoodle APR 11 étv N MacBook Air DII DD F4 F5 F6 F7 F8 . F9
CH3 || CH3 H₂O H2SO4 CH3CHCH2CH2C—ОCH₂CH₂CHCH3 a. Draw the structure of the tetrahedral intermediate INITIALLY-FORMED in the reaction shown. • • • You do not have to consider stereochemistry. Do not include counter-ions, e.g., Na+, I, in your answer. In cases where there is more than one answer, just draw one. √n [ ChemDoodle Ⓡ b. Draw the structures of the organic products of the acyl transfer reaction. • You do not have to consider stereochemistry. Draw the neutral form of the products; no charges. Draw one structure per sketcher. Add additional