10.00 mL of an unknown base solution is titrated with .100 M HCl solution. The pH versus the volume of NaOH added is shown below.

There is a graoh where there are two dotted lines signifying a pH: the highest at pH 6.31 and the lower at pH 3.92.

What is the pOH pf the solution at half equivalence point?
What is the ionization constant, Kb, for the unknown base?

1 answer

I'm confused. You have an unknown base, you're titrating with HCl, and you're adding NaOH? Something strange in Denmark.