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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Rank in order of Increasing Bronsted acidity the structures I, II and III.

Transcribed Image Text:(D) Rank in order of Increasing Bronsted acidity the structures I, II and III.
CF3
OH
OH
Cl3C
CC|3
OH
A. I<II < III
B. I< III < ||
C. II < | < III
III
D. II<III<I
In I and III the negative charge is delocalized directly onto the carbons that carry the
electron withdrawing substituents, the electronegative elements lower the energy of the
electrons via the inductive effect, which is stronger for more electronegative F compared
to Cl. In II the negative charge is never on the carbon with the substituents, the conjugate
base from II thus has the highest energy electrons and B is the weakest acid
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