a-0-135-m-solution-of-diprotic-acid-h2a-has-a-ph-of-5-85-a-0-135-m-solution-of-t

Question

A 0.135 M solution of diprotic acid $$H_{2}A $$has a pH of 5.85. A 0.135 M solution of the salt KHA is basic. Which of the following is a reasonable value for the pK_{a2} of this acid?

Accepted Answer

12.3

Answer

7.84

Answer

8.25

Answer

10.8

A 0.135 M solution of diprotic acid H2A has a pH of 5.85. A 0.135 M solution of the salt KHA is basic. Which of the following is a reasonable value for the pKa2 of this acid?

A 0.135 M solution of diprotic acid H₂A has a pH of 5.85. A 0.135 M solution of the salt KHA is basic. Which of the following is a reasonable value for the pK_a2 of this acid?