The of ethanoic acid,

CHEMISTRY · Multi-part · A Level · Chemistry · Acids and bases · Acids and bases

Problem

1. The

pK_a

of ethanoic acid,

CH_3COOH

, at 298 K is 4.76. What is the

pK_b

of its conjugate base

CH_3COO^-

? (1) The

pK_a

of ethanoic acid,

CH_3COOH

, at 298 K is 4.76. What is the

pK_b

of its conjugate base

CH_3COO^-

? (2) The

pK_a

of methanoic acid,

HCOOH

, at 298 K is 3.75. Is its conjugate base weaker or stronger than the conjugate base of ethanoic acid?