3-
What are the concentrations of nicotinic acid, hydrogen ion, and nicotinate ion in a
solution of 0.10 M nicotinic acid, HC6H4NO2, at 25°C? What is the pH of the solu-
tion? What is the degree of ionization of nicotinic acid? The acid-ionization constant,
Ka, was determined in the previous example to be 1.4 x 10-5.
