What Is the Equilibrium Constant for the Following Reaction,
HCO₂H(aq) $\times$

What is the equilibrium constant for the following reaction,
HCO₂H(aq) + CN^-(aq) HCO₂^-(aq) + HCN(aq)

And does the reaction favor the formation of reactants or products? The acid dissociation constant,K_a,for HCO₂H is 1.8 $\times$ 10^-4 and the acid dissociation constant for HCN is 4.0 $\times$ 10^-10.

A) K = 1.00.The reaction favors neither the formation of reactants nor products.
B) K = 2.2 $\times$ 10^-6.The reaction favors the formation of products.
C) K = 2.2 $\times$ 10^-6.The reaction favors the formation of reactants.
D) K = 4.5 $\times$ 10⁵.The reaction favors the formation of products.
E) K = 4.5 $\times$ 10⁵.The reaction favors the formation of reactants.