What are the products of this reaction: HC_2H_3O_2 + NaHCO_3 ->?

1 Answer
Mar 29, 2018

The theoretical equilibrium of these two species in solution is,

CH_3COOH(aq) + HCO_3^(-)(aq) rightleftharpoons CH_3COO^(-)(aq) + H_2CO_3(aq)

But we need to consult pK_"a" values to understand what side the equilibrium favors.

Carbonic acid (H_2CO_3) has a pK_"a" of approximately 6.4, whereas acetic acid has a pK_"a" of approximately 4.8.

Thus, the equilibrium lies to the right, but only by two or so orders of magnitude.