Organic Chemistry
12th Edition
ISBN: 9781118875766
Author: T. W. Graham Solomons, Craig B. Fryhle, Scott A. Snyder
Publisher: WILEY
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Textbook Question
Chapter 4, Problem 14PP
Practice Problem 4.14
Show by a calculation (using the formula
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A tautometric keto (A) – enol(B) equilibrium may be formulated as follows
(A) (B)
CH3 – COH ß-----------àCH2 – CHOH
Given the following bond energies:
C – H = 435kJ mol-1
C – C = 368
C==C = 610
C – O = 357 kJmol-1
C==O = 748 kJmol-1
O – H = 462 kJ mol-1
Calculate the enthalpy change in going from Keto form (A) to the enol form (B)
Use bond-dissociation enthalpies (Table 4-2, p. 167) to calculate values of ∆H° for the following reactions.
(a) CH3¬CH3 + I2 ¡ CH3CH2I + HI(b) CH3CH2Cl + HI ¡ CH3CH2I + HCl(c) (CH3)3C¬OH + HCl ¡ (CH3)3C¬Cl + H2O
(d) CH3CH2CH3 + H2 ¡ CH3CH3 + CH4
(e) CH3CH2OH + HBr ¡ CH3CH2¬Br + H2O
Acetic acid, CH3 COOH, is a weak organic acid, pK a 4.47.
Determine the position of the equilibrium for the reaction of acetic acid with NaHCO3, and draw the species that predominate at equilibrium.
• You do not have to consider stereochemistry.
• You do not have to explicitly draw H atoms.
•Separate structures with + signs from the drop-down menu.
• Draw cations and anions in separate sketchers. Do not include metal counter-ions, e.g., Nat, in your answer.
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Chapter 4 Solutions
Organic Chemistry
Ch. 4 - Prob. 1PPCh. 4 - Which structure does not represent...Ch. 4 - Prob. 3PPCh. 4 - Draw bond-line formulas for all of the isomers of...Ch. 4 - Prob. 5PPCh. 4 - Draw bond-line formulas and give IUPAC...Ch. 4 - Draw bond-line formulas and give IUPAC...Ch. 4 - Practice Problem 4.8 Give names for the following...Ch. 4 - Prob. 9PPCh. 4 - Prob. 10PP
Ch. 4 - Prob. 11PPCh. 4 - Give the structures and IUPAC names for all the...Ch. 4 - Prob. 13PPCh. 4 - Practice Problem 4.14 Show by a calculation (using...Ch. 4 - Practice Problem 4.15 Write structures for the cis...Ch. 4 - Practice Problem 4.16
(a) Write structural...Ch. 4 - Practice Problem 4.17 Write a conformational...Ch. 4 - Practice Problem 4.18
(a) Write the two...Ch. 4 - Prob. 19PPCh. 4 - Practice Problem 4.20 (a) What is the index of...Ch. 4 - Practice Problem 4.21
Zingiberene, a fragrant...Ch. 4 - Practice Problem 4.22 Carbonyl groups also count...Ch. 4 - Prob. 23PCh. 4 - Give systematic IUPAC names for each of the...Ch. 4 - Prob. 25PCh. 4 - Write the structure and give the IUPAC systema.tic...Ch. 4 - 4.27. Write the structure(s) of the simplest...Ch. 4 - Prob. 28PCh. 4 - 4.29. Write structures for the following...Ch. 4 - Prob. 30PCh. 4 - A spiro ring junction is one where two rings that...Ch. 4 - 4.32. Tell what is meant by a homologous series...Ch. 4 - Four different cycloalkenes will all yield...Ch. 4 - 4.34. (a) Three different alkenes yield...Ch. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - 4.37. Write the structures of two chair...Ch. 4 - Prob. 38PCh. 4 - Without referring to tables, decide which member...Ch. 4 - Prob. 40PCh. 4 - 4.41. Which compound would you expect to be the...Ch. 4 - Prob. 42PCh. 4 - 4.43. Write the two chair conformations of each of...Ch. 4 - Provide an explanation for the surprising fact...Ch. 4 - Prob. 45PCh. 4 - 4.46. Specify the missing compounds and/or...Ch. 4 - Consider the cis and trans isomers of...Ch. 4 - Prob. 48PCh. 4 - Open the energy-minimized 3D Molecular Models on...Ch. 4 - 4.50. Open the 3D Molecular Models on the book’s...Ch. 4 - 4.51. Open the 3D Molecular Model on the book’s...Ch. 4 - 1. The predominant conformation for D-glucose is...Ch. 4 - Prob. 2LGPCh. 4 - When 1,2-dimethylcyclohexene is allowed to react...Ch. 4 - Prob. 4LGP
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