Question

A physician wishes to prepare a buffer solution of pH =
3.58 that efficiently resists a change in pH yet contains
only small concentrations of the buffering agents. Which
one of the following weak acids together with its sodium
salt would be the best to use ? [1997]
(a) m-chlorobenzoic acid (pKₐ = 3.98)
(b) p-chlorocinnamic acid (pKₐ = 4.41)
(c) 2, 5-dihydroxy benzoic acid (pKₐ = 2.97)
(d) Acetoacetic acid (pKₐ = 3.58)

Answer 1

$\huge\bold\red{Answer:-}$

(d) Acetoacetic acid (pKₐ = 3.58)

Answer 2

$\huge{\underline{\mathbb{\red{Answer}}}}$

(d) Acetoacetic acid (pKₐ = 3.58)

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$\huge{\underline{\underline{\mathfrak{Thank you}}}}$