Connect Online Access 1-Semester for Organic Chemistry
Connect Online Access 1-Semester for Organic Chemistry
6th Edition
ISBN: 9781260475609
Author: SMITH, Janice
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 21, Problem 43P
Interpretation Introduction

(a)

Interpretation: The given carboxylic acids is to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

Interpretation Introduction

(b)

Interpretation: The given carboxylic acids are to be prepared by using malonic ester synthesis.

Concept introduction: The malonic ester synthesis is a method which is used to convert diethyl malonate into a carboxylic acid. NaOEt is a strong base. It abstracts a proton from the alpha carbon of an ester molecule to forms an enolate.

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(c) The following data have been obtained for the hydrolysis of sucrose, C12H22O11, to glucose, C6H12O6, and fructose C6H12O6, in acidic solution: C12H22O11 + H2O → C6H12O6 + C6H12O6 [sucrose]/mol dm³ t/min 0 0.316 14 0.300 39 0.274 60 0.256 80 0.238 110 0.211 (i) Graphically prove the order of the reaction and determine the rate constant of the reaction. (ii) Determine the half-life, t½ for the hydrolysis of sucrose.
(III) adsorbent (b) Adsorption of the hexacyanoferrate (III) ion, [Fe(CN)6] ³, on y-Al2O3 from aqueous solution was examined. The adsorption was modelled using a modified Langmuir isotherm, yielding the following values of Kat pH = 6.5: (ii) T/K 10-10 K 280 2.505 295 1.819 310 1.364 325 1.050 Determine the enthalpy of adsorption, AadsHⓇ. If the reported value of entropy of adsorption, Aads Se = 146 J K-1 mol-1 under the above conditions, determine Aads Gº.
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Connect Online Access 1-Semester for Organic Chemistry

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