Which of the following acids would be expected to have the largest value for pK_a? A)4-bromobutanoic acid B)4-chlorobutanoic acid C)4,4-dichlorobutanoic acid D)4-bromo-4-iodobutanoic acid E)4-bromo-4,4-dichlorobutanoic acid

Question

Quizplus · Accepted Answer

The pKa value is inversely related to acid strength. The fewer electronegative substituents present, the weaker the acid. 4-bromobutanoic acid has the least electronegative substituents compared to the other options, making it the weakest acid and thus having the largest pKa value.

Which of the Following Acids Would Be Expected to Have