Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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4. Which molecule has the lowest pKa for the H proton at the very bottom (the H that's in the same spot for all the molecules)? Please explain your reasoning.
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Step 1: concept
Based on the stability of conjugate base of compound, acidity vary. With increasing the stability of conjugate base, acidity increases.
+R group increase the electron density on benzene ring that results decrease in acidity.
-R group decrease the electron density on benzene ring that results increase in acidity.
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