Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Textbook Question
Chapter 9, Problem 43P
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
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. 9.2 - Prob. 8PCh. 9.2 - Prob. 9PCh. 9.2 - Prob. 10PCh. 9.2 - Prob. 11PCh. 9.2 - Which substitution reaction lakes place more...Ch. 9.2 - Prob. 14PCh. 9.2 - Prob. 16P
Ch. 9.3 - Prob. 17PCh. 9.4 - Prob. 18PCh. 9.5 - Prob. 19PCh. 9.5 - Prob. 20PCh. 9.5 - Prob. 21PCh. 9.5 - Prob. 22PCh. 9.6 - Prob. 23PCh. 9.6 - Prob. 24PCh. 9.6 - Which of the following reactions take place more...Ch. 9.7 - Prob. 26PCh. 9.7 - Prob. 27PCh. 9.7 - Prob. 28PCh. 9.7 - Prob. 30PCh. 9.7 - Under which of the following reaction conditions...Ch. 9.8 - After a proton is removed from the OH group, which...Ch. 9.8 - Prob. 33PCh. 9.9 - Prob. 34PCh. 9 - Prob. 1PCh. 9 - Methoxychlor is an insecticide that was intended...Ch. 9 - Prob. 35PCh. 9 - Prob. 36PCh. 9 - Prob. 37PCh. 9 - Prob. 38PCh. 9 - Prob. 39PCh. 9 - Prob. 40PCh. 9 - Starting with cyclohexene, how can the following...Ch. 9 - Prob. 42PCh. 9 - The pKa of acetic acid in water is 4.76. What...Ch. 9 - Prob. 44PCh. 9 - Prob. 45PCh. 9 - Prob. 46PCh. 9 - Prob. 47PCh. 9 - Prob. 48PCh. 9 - Prob. 49PCh. 9 - Prob. 50PCh. 9 - Prob. 51PCh. 9 - tert-Butyl chloride undergoes solvolysis in both...Ch. 9 - Prob. 53PCh. 9 - Prob. 54PCh. 9 - In which solventethanol or diethyl etherwould the...Ch. 9 - Prob. 56PCh. 9 - Two bromoethers are obtained from the reaction of...Ch. 9 - Prob. 58PCh. 9 - Prob. 59PCh. 9 - Prob. 60PCh. 9 - Propose a mechanism for the following reaction:Ch. 9 - Prob. 62PCh. 9 - Prob. 63PCh. 9 - Prob. 64PCh. 9 - Prob. 65PCh. 9 - When equivalent amounts of methyl bromide nod...Ch. 9 - Prob. 67PCh. 9 - The reaction of chloromethane with hydroxide ion...
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- If the G 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 H = 3.2 kcal/mol?arrow_forwardThe dissociation of lactic acid to lactate is shown in the reaction. Lactic acid has a pk, of 3.86. + H* HO OH OH Lactic acid Lactate A solution containing a mixture of lactic acid and lactate was found to have a pH of 3.32. Calculate the ratio of the lactate concentration to the lactic acid concentration in this solution. [lactate] [lactic acid] 0.301 What fraction of the lactic acid/lactate mixture is lactic acid? fraction lactic acid =arrow_forwardCalculate the acid dissociation constant (Ka) of acetic acid when pka = 4.64arrow_forward
- Calculate the pH of a 0.2 M solution of an amine that has a pKa of 9.5arrow_forward4. Calculate pH of water solution of Hydrosulphuric acid with concentration of 0,050 M (pKa=6.99)arrow_forwardWhat is the pH of an aqueous solution containing 0.50 mol L–1 ethanoic acid, 0.30 mol L–1 sodium ethanoate, and 0.10 mol L–1 HCl? [The pKa of ethanoic acid is 4.75.]arrow_forward
- What is the pKa of benzoic acid? What is the molar concentration of sodium benzoate (conjugate base)? What is the molar concentration of benzoic acid (weak acid)?arrow_forwardDrug A is a weak acid that has a pKa value of 4. For the Drug A dissolved in Buffer B, calculate what percentage of Drug A is protonated? Can drug A diffuse freely across cell membrane?The pH for Drug A in Buffer B is 6.6 pH. The concentration is 0.1Marrow_forwardPart A The chemical 5-amino-2,3-dihydro-1,4-phthalazinedione, better known as luminol, is used by forensic scientists in analyzing crime scenes for the presence of washed-away blood. Luminol is so sensitive that it can detect blood that has been diluted 10,000 times. A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood. The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of luminol? Express your answer with the appropriate units. Luminol has a molecular weight of 177 g/mol. • View Available Hint(s) HẢ molarity of luminol solution = Value Units Submit Part B Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00x10-2 M. The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of…arrow_forward
- 3. What is observed when the H2O concentration in the acetic acid equilibrium becomes relatively low? Relatively high? 4. Humidity indicator cards (HIC) are commonly added to semiconductor shipments to document that the parts were not exposed to humidity. These cards are impregnated with cobalt(II) chloride, or an alternative, and change color to indicate the presence of water. Predict the color you would see if a cobalt(II) chloride HIC were exposed to moist, humid air?arrow_forwardFor an acid HA with a pKa of 5.2, what is the ratio of the concentration of the conjugate base to that of the acid at pH 7.2.arrow_forwardFor an acid with a pKa of 5.00, what is the pKb of its conjugate base?arrow_forward
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