Organic Chemistry (8th Edition)
8th Edition
ISBN: 9780134042282
Author: Paula Yurkanis Bruice
Publisher: PEARSON
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Textbook Question
Chapter 9, Problem 75P
The pKa of acetic acid in water is 4.76. What effect will a decrease in the polarity of the solvent have on the pKa? Why?
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Chapter 9 Solutions
Organic Chemistry (8th Edition)
Ch. 9.1 - Prob. 3PCh. 9.1 - Does increasing the energy barrier for an SN2...Ch. 9.1 - Rank the following alkyl bromides from most...Ch. 9.1 - Prob. 8PCh. 9.2 - Prob. 9PCh. 9.2 - Prob. 10PCh. 9.2 - Prob. 11PCh. 9.2 - Prob. 12PCh. 9.2 - Which substitution reaction lakes place more...Ch. 9.2 - Prob. 15P
Ch. 9.2 - Prob. 17PCh. 9.3 - Prob. 18PCh. 9.4 - Prob. 19PCh. 9.5 - Draw the configuration(s) of the substitution...Ch. 9.5 - Which of the following reactions take place more...Ch. 9.7 - Prob. 22PCh. 9.7 - Prob. 23PCh. 9.7 - Prob. 24PCh. 9.7 - Prob. 25PCh. 9.8 - Four alkenes are formed from the E1 reaction of...Ch. 9.8 - If 2-fluoropentane could undergo an E1 reaction,...Ch. 9.8 - Prob. 28PCh. 9.8 - Propose a mechanism for the following reaction:Ch. 9.9 - Prob. 30PCh. 9.9 - What percentage of the reaction described in...Ch. 9.10 - Prob. 33PCh. 9.10 - Prob. 35PCh. 9.11 - Why do cis-1-bromo-2-ethylcyclohexane and...Ch. 9.11 - Which isomer reacts more rapidly in an E2...Ch. 9.11 - Prob. 38PCh. 9.12 - Prob. 39PCh. 9.12 - Prob. 40PCh. 9.12 - Prob. 41PCh. 9.12 - Explain why only a substitution product and no...Ch. 9.12 - a. Explain why 1-bromo-2,2-dimethylpropane has...Ch. 9.13 - Prob. 44PCh. 9.13 - Prob. 45PCh. 9.13 - What products will be obtained from the El...Ch. 9.13 - Prob. 47PCh. 9.13 - Prob. 48PCh. 9.13 - Prob. 49PCh. 9.13 - Why is a cumulated diene not formed in the...Ch. 9.13 - What product is obtained when the following...Ch. 9.13 - What products are formed from the following...Ch. 9.14 - Prob. 54PCh. 9.14 - Prob. 55PCh. 9.14 - Prob. 56PCh. 9.14 - Prob. 58PCh. 9.14 - Under which of the following reaction conditions...Ch. 9.15 - A small amount of another organic product is...Ch. 9.15 - What is the best way to prepare the following...Ch. 9.15 - Prob. 62PCh. 9.15 - What products (including stereoisomers, if...Ch. 9.16 - After a proton is removed from the OH group, which...Ch. 9.16 - Prob. 65PCh. 9.17 - Prob. 66PCh. 9 - Prob. 1PCh. 9 - Methoxychlor is an insecticide that was intended...Ch. 9 - Prob. 67PCh. 9 - Prob. 68PCh. 9 - Prob. 69PCh. 9 - Prob. 70PCh. 9 - Prob. 71PCh. 9 - Prob. 72PCh. 9 - Starting with cyclohexene, how can the following...Ch. 9 - Prob. 74PCh. 9 - The pKa of acetic acid in water is 4.76. What...Ch. 9 - Prob. 76PCh. 9 - Prob. 77PCh. 9 - Prob. 78PCh. 9 - Prob. 79PCh. 9 - Prob. 80PCh. 9 - Prob. 81PCh. 9 - Prob. 82PCh. 9 - Draw the major product obtained when each of the...Ch. 9 - Prob. 84PCh. 9 - a. Indicate how each of the following factors...Ch. 9 - Prob. 86PCh. 9 - A chemist wanted to synthesize the...Ch. 9 - Prob. 88PCh. 9 - Prob. 89PCh. 9 - Prob. 90PCh. 9 - Prob. 91PCh. 9 - Starting with an alkyl halide, how could the...Ch. 9 - Indicate which species in each pair gives a higher...Ch. 9 - Prob. 94PCh. 9 - Rank the following from most reactive to least...Ch. 9 - For each of the following alkyl halides, indicate...Ch. 9 - Prob. 97PCh. 9 - When 2-bromo-2,3-dimethylbutane reacts with a...Ch. 9 - Prob. 100PCh. 9 - When the following compound undergoes solvolysis...Ch. 9 - cis-1-Bromo-4-tert-butylcyclohexane and...Ch. 9 - Draw the substitution and elimination products.Ch. 9 - tert-Butyl chloride undergoes solvolysis in both...Ch. 9 - Prob. 105PCh. 9 - Prob. 106PCh. 9 - In which solventethanol or diethyl etherwould the...Ch. 9 - Prob. 108PCh. 9 - Two bromoethers are obtained from the reaction of...Ch. 9 - Prob. 110PCh. 9 - Prob. 111PCh. 9 - Prob. 112PCh. 9 - Which of the following hexachlorocyclohexanes is...Ch. 9 - Explain why the rate of the reaction of...Ch. 9 - Prob. 115PCh. 9 - Two elimination products are obtained from the...Ch. 9 - Draw the structures or the product of the obtained...Ch. 9 - How could you prepare the following compounds from...Ch. 9 - cis-4-Bromocyclohexanol and...Ch. 9 - Prob. 120PCh. 9 - Propose a mechanism for the following reaction:Ch. 9 - Prob. 122PCh. 9 - Prob. 123PCh. 9 - Prob. 124PCh. 9 - Prob. 125PCh. 9 - Predict the product for the following reaction and...Ch. 9 - Prob. 127PCh. 9 - Prob. 128PCh. 9 - When equivalent amounts of methyl bromide nod...Ch. 9 - Prob. 130PCh. 9 - The reaction of chloromethane with hydroxide ion...
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- Provide an explanation without using the pka values : Why is phenol stronger acid than butanoic acid?arrow_forwardThe pKa values of the carboxylic acid groups of oxaloacetic acid are 2.22 and 3.98. a. Which carboxyl group is the stronger acid? b. The amount of hydrate present in an aqueous solution of oxaloacetic acid depends on the pH of the solution: 95% at pH 0, 81% at pH 1.3, 35% at pH 3.1, 13% at pH 4.7, 6% at pH 6.7, and 6% at pH 12.7. Explain this pH dependence.arrow_forwardThe pKa values of the carboxylic acid groups of oxaloacetic acid are 2.22 and 3.98.a. Which carboxyl group is the stronger acid?b. The amount of hydrate present in an aqueous solution of oxaloacetic acid depends on the pH of the solution: 95% at pH 0, 81% at pH 1.3, 35% at pH3.1, 13% at pH 4.7, 6% at pH 6.7, and 6% at pH 12.7. Explain this pH dependence.arrow_forward
- What is the lowest pH buffer that could effectively be made with a weak acid that has a pK a of 5.418?arrow_forwardTwo pKa values are reported for malonic acid, a compound with twoCOOH groups. Explain why one pKa is lower and one pKa is higher thanthe pKa of acetic acid (CH3COOH, pKa = 4.8).arrow_forwardCalculate the pH of 1.25x10^-2 M of the decongestantephedrine hydrochloride if the pKb of ephedrine (itsconjugate base) is 3.86.arrow_forward
- Most of the pKa values given in this text were determined in water. How would the pKa values of carboxylic acids, alcohols, ammonium ions (RN+H3) , phenol, and an anilinium ion (C6H5N+H3) + change if they were determined in a solvent less polar than waterarrow_forwardWhat is the pKa of a weak acid with a Ka of 4.7 X 10-6?arrow_forwardAt what pH will 25% of a compound with a pKa of 5.3 be in its basic form?arrow_forward
- Find the pH of 0.051 M trimethylammomium chloride solution given a pKa of 9.799 for the trimethylammonium ion.arrow_forwardCarnosine, found in muscle and brain tissue, acts as a buffer to neutralize small amounts of acid. The pKa of the conjugate acid of carnosine is close to 7.0. What is its structure?arrow_forwardConsider the properties of sodium carbonate (Na2CO3), potassium carbonate (K2CO3), andsodium hydroxide (NaOH). How do they differ by pKa? Nucleophilicity? Solubility?arrow_forward
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