Which of the acids below would have the strongest conjugate base? A)CH₃CH₂OH pK_a = 18 B)CH₃CO₂H pK_a = 4.75 C)ClCH₂CO₂H pK_a = 2.81 D)Cl₂CHCO₂H pK_a = 1.29 E)Cl₃CCO₂H pK_a = 0.66

Question

Quizplus · Accepted Answer

The strength of a conjugate base is inversely related to the strength of its acid. The higher the pKa, the weaker the acid, and thus the stronger its conjugate base. With a pKa of 18, choice A represents the weakest acid and therefore has the strongest conjugate base.

Which of the Acids Below Would Have the Strongest Conjugate