A physician wishes to prepare a buffer solution at pH = 3. 58 that efficiently resists a change in pH yet contains only small conc. of the buffering agents. Which one of the following weak acid together with its sodium salt would be best to use?

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

m-chloro benzoic acid (pKa = 3.98)

p - chlorocinnamic acid (pKa = 4.41)

2.5 - dihydroxy benzoic acid (pKa = 2.97)

Acetoacetic acid (pKa = 3.58)

answer is D.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Given that the buffer solution contains only small concentraiton of buffering agents

Watch 3-min video & get full concept clarity