Question

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, Ka, for HCO2H is 1.8 10-4 and the acid dissociation constant for HCN is 4.0 10-10.
A.K = 1.00. The reaction favors neither the formation of reactants nor products.
B.K = 2.2 10-6. The reaction favors the formation of products.
C.K = 2.2 10-6. The reaction favors the formation of reactants.
D.K = 4.5 105. The reaction favors the formation of products.
E.K = 4.5 105. The reaction favors the formation of reactants.

Answer

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