Organic Chemistry
8th Edition
ISBN: 9781337516402
Author: Brown
Publisher: Cengage
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 4.18P
If the ΔG° for a reaction is –4.5 kcal/mol at 298 K, what is the Keq for this reaction? What is the change in entropy of this reaction if ΔH° = –3.2 kcal/mol?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
The ΔHac of nitrogen dioxide is -937.86 kJ/mole. The ΔHf of nitrogen dioxide is +33.2 kJ/mole. Propose a reasonable explanation for this difference
If the ▲G0 for a reaction is -4.5 kcal/mol at 298 K, what is the Keq for this reaction? What is the change in entropy of this reaction if ▲H0 = -3.2 kcal/mol?
Which Keq corresponds to a lower value of ΔGo, Keq = 10−2 or Keq = 10−5?
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Another step in the metabolism of glucose, which occurs after the formation of glucose6-phosphate, is the conversion of fructose6-phosphate to fructose1,6-bisphosphate(bis meanstwo): Fructose6-phosphate(aq) + H2PO4(aq) fructose l,6-bisphosphate(aq) + H2O() + H+(aq) (a) This reaction has a Gibbs free energy change of +16.7 kJ/mol of fructose6-phosphate. Is it endergonic or exergonic? (b) Write the equation for the formation of 1 mol ADP fromATR for which rG = 30.5 kJ/mol. (c) Couple these two reactions to get an exergonic process;write its overall chemical equation, and calculate theGibbs free energy change.arrow_forwardWrite a chemical equation for each process and classify each as reactant-favored or product-favored. (a) A puddle of water evaporates on a summer day. (b) Silicon dioxide (sand) decomposes to the elements Silicon and oxygen. (c) Paper, which is mainly cellulose (C6H10O5)n, bums at a temperature of 451 F. (d) A pinch of sugar dissolves in water at room temperature.arrow_forwardTrue or false: A reaction that has a Gibbs free energy of -3 kcal/mol is an endergonic (non-spontaneous) reaction. True Falsearrow_forward
- Calculate the enthalpy for the reaction. ΔH CH2=CH2, 62 kcal/mol H-Cl, 103 kcal/mol CH3 CH2-H, 101 kcal/mol CH3CH2-Cl, 85 kcal/molarrow_forwardGiven the following reaction: CH4G) + O2ig) + Cs) + 2H,00 ΔΗ - 118.7 kcal 1 Cs) + O2lg) → CO(g) AH° - 26.4 kcal 2 1 O2ig) → CO29) AH° = - 67.7 kcal 2 Consider the combustion of methane, determine the AH° using Hess's Law. CH49) + 202ig) → CO2(@) + 2H,O0 ΔΗ- =arrow_forwardGiven the heat of formation of the following compounds: CO2(g) ΔfH° = -393.5 kJ/mol H2O(l) ΔfH° = -285.9 kJ/mol CH3OH(l) ΔfH° = -238.6 kJ/mol What is the value of ΔrH° for the reaction: CH3OH(l) + 3/2 O2(g) → CO2(g) + 2 H2O(l)arrow_forward
- The value of Kj and K for hydrosulfuric acid are 1.00x107 and 1.00x10-19 , respectively. (Use H3O* instead of H*.) Write the equation for the reaction that goes with Ka1: Write the equation for the reaction that goes with K2:arrow_forwardWhich Keq corresponds to a negative value of ΔGo, Keq = 1000 or Keq = .001?arrow_forwardfor the reaction 2 Hg (l) + O2 (g) →2 HgO (s), ∆H = - 43 kcal/mol Does entropy increase or decrease in this process? Explain.arrow_forward
- Calculate AH for the reaction: 2NH3 (g) + O2(g) → N2H4 (1) + H2O(1) given the following data: 2NH3 (g) + 3N20(g) → 4N2(g) + 3H2O(1) AH = –1010. kJ N20(g) + 3H2 (9) → N¿H4(1)+H2O(1) AH = -317 kJ N2H4 (1) + O2 (g) → N2(g)+ 2H2O(1) AH = -623 kJ H2 (9) + 02 (9) → H2O(1) AH = -286 kJ ΔΗ - kJarrow_forwardNow consider the following reaction: C2H5OH + 3O2→2CO2+ 3H2O ,ΔH=−1370 kJ/mol What is the enthalpy for the reaction reversed? reaction 1 reversed: 2CO2 + 3H2O→C2H5OH + 3O2arrow_forwardCl(g) ΔH°f, = +121.3 kJ mol–1 Cl–(aq) ΔH°f, = –167.2 kJ mol–1 HCl(g) ΔH°f, = –92.3 kJ mol–1 HCl(aq) ΔH°f, = –167.2 kJ mol–1 Cl2(g) ΔH°f, = 0 kJ mol–1 H2O(l) ΔH°f, = –286 kJ mol–1 ClO2(g) ΔH°f, = +102.5 kJ mol–1 Cl2O(g) ΔH°f, = +80.3 kJ mol–1 O(g) ΔH°f, =+249.0 kJ mol–1 H(g) ΔH°f, =+218.2 kJ mol–1 Which material is most 'stable' at 298 K? Question 1 options: Cl2(g) Cl–(aq) Cl(g)arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
General Chemistry | Acids & Bases; Author: Ninja Nerd;https://www.youtube.com/watch?v=AOr_5tbgfQ0;License: Standard YouTube License, CC-BY