The PKa of a weak acid (HA) is 4.5 . The...

The `PK_a` of a weak acid (HA) is 4.5 . The pOH of an aqueous buffered solution of HA in which `50%` of the acid is ionized is

A

2.5

B

9.5

C

7

D

4.5

Verified by Experts

The correct Answer is:

B

Similar Questions

Explore conceptually related problems

The pK_(a0 of a weak acid (HA) is 4.5. The pOH of an aqueous buffered solution of HA in which 50% of the acid is ionized is :

The pH of an aqueous solution of a 0.1 M solution of a weak monoprotic acid which is 1% ionised is :

Define pK_(a) for weak acids.

The pH of a buffer solution containing a weak acid (pK_(a)) and its salt is :

An aqueous solution of NH_(4)Cl is acidic. Give reason.

Why does an aqueous solution of acid conduct electricity ?

The pK_(a) of a weak acid is 4.8. What should be the ratio of [Acid]/[Salt] of a buffer if pH = 5.8 is required ?