Which of the following is true when comparing two acids? A) The stronger acid has the larger K_a. B) The stronger acid has the smaller pK_a. C) The stronger acid has the larger K_aand the smaller pK_a D) None of these

Question

Quizplus · Accepted Answer

The strength of an acid is directly related to its acid dissociation constant (K_a); a larger K_a indicates a stronger acid. The pK_a is the negative logarithm of K_a, so a smaller pK_a also indicates a stronger acid. Therefore, both A and B are true, making C the correct choice.

Which of the Following Is True When Comparing Two Acids