The acidity constant, Ka, differs from the equilibrium constant, Keq, for the dissociation of the same acid in water at the same temperature and concentration in what way? (A) Ka can be determined experimentally with less accuracy than Keq. (B) The two terms are identical numerically. (C) Ka is used for strong acids only; Keq for weak acids. (D) Ka is the reciprocal of Keq. (E) Keq = Ka/[H2O].

The acidity constant, Ka, differs from the equilibrium constant, Keq,

1.	The acidity constant, Ka, differs from the equilibrium constant, Keq, for the dissociation of the same acid in water at the same temperature and concentration in what way? (A) Ka can be determined experimentally with less accuracy than Keq. (B) The two terms are identical numerically. (C) Ka is used for strong acids only; Keq for weak acids. (D) Ka is the reciprocal of Keq. (E) Keq = Ka/[H2O].
Answer» (E) K_eq= K_a/[H₂O].