a. When a carboxylic acid is dissolved in isotopically labeled water (H218O) and an acid catalyst is added, the label is incorporated into both oxygens of the acid. Propose a mechanism to account for this.b. If a carboxylic acid is dissolved in isotopically labeled methanol (CH318OH) and an acid catalyst is added, where will the label reside in the product?c. If an ester is dissolved in isotopically labeled water (H218O) and an acid catalyst is added, where will the label reside in the product? O1818HCIC.С. 18ОН+ H,0+ H,0CHOHCH,

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Answered: O18 18 HCI C. С. 18 ОН + H,0 + H,0 CH…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter1: Introduction To Chemistry

Section: Chapter Questions

Problem 1.68QE

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Question

a. When a carboxylic acid is dissolved in isotopically labeled water (H₂
¹⁸O) and an acid catalyst is added, the label is incorporated into both oxygens of the acid. Propose a mechanism to account for this.

b. If a carboxylic acid is dissolved in isotopically labeled methanol (CH₃
¹⁸OH) and an acid catalyst is added, where will the label reside in the product?
c. If an ester is dissolved in isotopically labeled water (H₂¹⁸O) and an acid catalyst is added, where will the label reside in the product?

O18
18
HCI
C.
С. 18
ОН
+ H,0
+ H,0
CH
OH
CH,

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

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O18 18 HCI C. С. 18 ОН + H,0 + H,0 CH OH CH,