Organic Chemistry
8th Edition
ISBN: 9781305580350
Author: William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher: Cengage Learning
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Chapter 4, Problem 4.31P
Interpretation Introduction
Interpretation:
The position of equilibrium in given acid base reaction has to be predicted. Also, the equilibrium constant
Concept Introduction:
Position of equilibrium in acid-base reaction:
In an acid-base reaction, the position of equilibrium always favors reaction of the stronger acid and stronger base to form the weaker acid and weaker base. Therefore, the major species present at equilibrium in an acid-base reaction are weaker acid and weaker base. The reaction equilibrium shifts to a direction where weaker acid and weaker base is formed. Acids with greater
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Predict the position of equilibrium and calculate the equilibrium constant, Keq, for each acid-base reaction
Predict the position of equilibrium and calculate the equilibrium constant, Keq, for each acid-base reaction
Predict the position of equilibrium and calculate the equilibrium constant, Keq, for acid-base reaction
Chapter 4 Solutions
Organic Chemistry
Ch. 4.2 - For each conjugate acid-base pair, identify the...Ch. 4.2 - Write these reactions as proton-transfer...Ch. 4.2 - Following is a structural formula for guanidine,...Ch. 4.2 - Write an equation to show the proton transfer...Ch. 4.3 - For each value of Ka, calculate the corresponding...Ch. 4.4 - Predict the position of equilibrium and calculate...Ch. 4.5 - Calculate Keq for a reaction with G0 = 17.1 kJ/mol...Ch. 4.6 - Acid-Base Equilibria Many factors contribute to...Ch. 4.6 - What is the relative trend in acidity and pKa of...Ch. 4.7 - Write an equation for the reaction between each...
Ch. 4 - For each conjugate acid-base pair, identify the...Ch. 4 - Complete a net ionic equation for each...Ch. 4 - Arrange the compounds in each set in order of...Ch. 4 - Prob. 4.12PCh. 4 - In acetic acid, CH3COOH, the OH hydrogen is more...Ch. 4 - Which has the larger numerical value? (a) The pKa...Ch. 4 - In each pair, select the stronger acid. (a)...Ch. 4 - Arrange the compounds in each set in order of...Ch. 4 - Arrange the compounds in each set in order of...Ch. 4 - If the G for a reaction is 4.5 kcal/mol at 298 K,...Ch. 4 - Calculate the Keq for the following reactions from...Ch. 4 - Prob. 4.20PCh. 4 - Answer true or false to the following statements...Ch. 4 - In each of the following three reaction coordinate...Ch. 4 - The acid-base chemistry reaction of barium...Ch. 4 - Unless under pressure, carbonic acid (H2CO3) in...Ch. 4 - Prob. 4.25PCh. 4 - Acetic acid, CH3COOH, is a weak organic acid, pKa...Ch. 4 - Benzoic acid, C6H5COOH (pKa 4.19), is only...Ch. 4 - Prob. 4.28PCh. 4 - One way to determine the predominant species at...Ch. 4 - Will acetylene react with sodium hydride according...Ch. 4 - Prob. 4.31PCh. 4 - For each equation, label the Lewis acid and the...Ch. 4 - Complete the equation for the reaction between...Ch. 4 - Each of these reactions can be written as a Lewis...Ch. 4 - The sec-butyl cation can react as both a...Ch. 4 - Prob. 4.36APCh. 4 - Prob. 4.37APCh. 4 - Prob. 4.38APCh. 4 - Explain why the hydronium ion, H3O+, is the...Ch. 4 - What is the strongest base that can exist in...Ch. 4 - Prob. 4.42APCh. 4 - Prob. 4.43APCh. 4 - Methyl isocyanate, CH3N=C=O, is used in the...Ch. 4 - Offer an explanation for the following...Ch. 4 - Prob. 4.46APCh. 4 - Alcohols (Chapter 10) are weak organic acids, pKa...Ch. 4 - As we shall see in Chapter 19, hydrogens on a...Ch. 4 - 2,4-Pentanedione is a considerably stronger acid...Ch. 4 - Write an equation for the acid-base reaction...Ch. 4 - Prob. 4.51APCh. 4 - Prob. 4.52APCh. 4 - Prob. 4.53APCh. 4 - Following is a structural formula for imidazole, a...
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- Predict the position of equilibrium for this acid-base reaction. CH,CH,0 Na* + CH,COH = CH,CH,OH + CH,CO Na+arrow_forwardComplete and balance the acid-base reaction. Identify the acid, base, conjugate acid and conjugate base in each reaction. Predict whether the equilibrium lies predominantly to the left or the right. CH3CO2H + H2O →arrow_forwardWrite products of the following acid-base reaction. Label the acid, base, conjugate acid and conjugate base. Indicate which side is favored in an equilibrium. HPO4 2- + HC6H5O7 2-arrow_forward
- Which of the following acids has the weakest conjugate base? Chlorous acid, Ka = 1.1 x 10-2 Chloroacetic acid, Ka = 1.4 x 10-3 Nitrous acid, Ka = 4.5 x 10-4 3-chlorobenzoic acid, Ka = 1.5 x 10-4 Formic acid, Ka = 1.8 x 10-4arrow_forwardRank the acids in order of increasing acid strength. CH3COOH CH2ClCOOH CHCl2COOH CCl3COOHarrow_forwardWhat is the product of this acid base reaction assuming a 1:1 reaction? H₂N + HCI NH₂arrow_forward
- Calculate the pH of an acetic acid solution, originally 0.25 M, in water. The pKa for acetic acid = 4.76.arrow_forwardIn equilibrium, label the stronger acid, the stronger base, the weaker acid, and the weaker base. Also estimate the position of equilibrium.arrow_forwardsimply identify Identify the conjugate acid in this reaction: H₂PO₄⁻ + OH⁻ ⇌ HPO₄²⁻ + H₂O Identify the Bronsted-Lowry base in this reaction: H₂PO₄⁻ + OH⁻ ⇌ HPO₄²⁻ + H₂O Identify the Bronsted-Lowry base in this reaction: H₂PO₄⁻ + HCl ⇌ H₃PO₄ + Cl⁻ Identify the conjugate base in this reaction: H₂PO₄⁻ + HCl ⇌ H₃PO₄ + Cl⁻arrow_forward
- When the reaction below reaches equilibrium, does the equilibrium lie on the left or the right side? Briefly explain.ClO– + CH3CO2H ⇌ HClO + CH3CO2–arrow_forwardFor the following reaction, K> 1. Classify each of the reactants and products based on their strength as Bronsted-Lowry acids or bases. CH3COOH + C18H2103NC18H2103NH+ + CH3COO- C18H2103NH+ CH3COO C18H2103N CH3COOH 1) Stronger Bronsted-Lowry acid 2) Weaker Bronsted-Lowry acid 3) Stronger Bronsted-Lowry base 4) Weaker Bronsted-Lowry basearrow_forwardcomplete the equation for the reaction between each Lewis acid-base pair. In each equation, label which starting material is the Lewis acid and which is the Lewis base; use curved arrows to show the flow of electrons in each reaction. In doing this problem, it is essential that you show valence electrons for all atoms participating in each reactionarrow_forward
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