Consider the data in the Table below to answer the following question:
Acidities of Substituted Benzoic and Acetic Acids
pK_as at 25^$\circ$C
Y-C₆H₄COOH
Y
Y-CH₂COOH
meta
para
H
4.75
4.19
4.19
CN
2.47
3.64
3.55
OCH₃
3.57
4.09
4.46
The structure of the acid with the strongest conjugate base in the table above is CH₃COOH.

Question

Quizplus · Accepted Answer

The conjugate base of an acid is the species that results from the loss of a proton from the acid. The stronger the acid, the weaker its conjugate base. The pKa of an acid is a measure of its strength, with lower pKa values indicating stronger acids. The acid with the strongest conjugate base in the table is the one with the highest pKa, which is CH3COOH.

Consider the Data in the Table Below to Answer the Following