1. Pyruvic acid (HPyr) is an important metabolite produced by cells. The acid-base equilibrium for pyruvic acid can be written as HPyr = H+ + Pyr . Pyruvic acid has a pKa of 4.1. A pure solution of 1M pyruvic acid in water was prepared. The initially low pH was adjusted to pH 4.1 with sodium hydroxide (NaOH).

What are the approximate molar concentrations of pyruvate [Pyr ] and undissociated pyruvic acid [HPyr] in this solution?