Question

The $pK_a$ of a weak acid $HA$ and $pK_b$ of a weak base $BOH$ are $4.60$ and $4.80$ respectively. The $pH$ of $0.1\, M$ solution of the salt, $BA$, formed from the acid $HA$ and base $BOH$ is

• A. 7 .10
• B. 9 .40
• C. 6 .90
• D. 0 .20

Answer 1

Answer: (C)

6 .90

Answer 2

Answer (c) 6 .90