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Nicotine is a dibasic alkaloid. A pKa value of 8 is associated with the aliphatic nitrogen in the 5-membered saturated ring, and a pka of 3 is associated with the heterocyclic nitrogen contained within the aromatic 6-membered ring. Nitrogen containing aromatic heterocycles are typically much less basic than are aliphatic or alicyclic amines. Which of the following forms of nicotine is predicted to be most abundant in water solution at pH 6? A. N CH3 B. H÷N¬ CH3 C. H N CH3 D. N* H -N-H CH3

Nicotine is a dibasic alkaloid. A pKa value of 8 is associated with the aliphatic nitrogen in the 5-membered saturated ring, and a pka of 3 is associated with the heterocyclic nitrogen contained within the aromatic 6-membered ring. Nitrogen containing aromatic heterocycles are typically much less basic than are aliphatic or alicyclic amines. Which of the following forms of nicotine is predicted to be most abundant in water solution at pH 6? A. N CH3 B. H÷N¬ CH3 C. H N CH3 D. N* H -N-H CH3

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Nicotine is a dibasic alkaloid. A pKa value of 8 is associated with the aliphatic nitrogen in the 5-membered saturated ring, and a pk of 3 is associated with the heterocyclic nitrogen contained within the aromatic 6-membered ring. Nitrogen containing aromatic heterocycles are typically much less basic than are aliphatic or alicyclic amines. Which of the following forms of nicotine is predicted to be most abundant in water solution at pH 6? C. D. B. A. N N -N=H OR DA ER DE CH3 CH3 CH3 CH3 `N+ H
Transcribed Image Text:Nicotine is a dibasic alkaloid. A pKa value of 8 is associated with the aliphatic nitrogen in the 5-membered saturated ring, and a pk of 3 is associated with the heterocyclic nitrogen contained within the aromatic 6-membered ring. Nitrogen containing aromatic heterocycles are typically much less basic than are aliphatic or alicyclic amines. Which of the following forms of nicotine is predicted to be most abundant in water solution at pH 6? C. D. B. A. N N -N=H OR DA ER DE CH3 CH3 CH3 CH3 `N+ H
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