What volume, in liters, of 1.04 M KOH solution should be added to a 0.116 L solution containing 10.08 g of glutamic acid hydrochloride (Glu, FW = 183.59 g/mol; pKa1 = 2.23, pKa2 = 4.42, pKa3 = 9.95) to get to pH 10.15?

Answer 1

Is my Henderson equation right? 10.15=9.95+log(x/(.059-x))

Answer 2

It looks ok except for the 0.059.
10.08/183.59 = 0.0549 mols

Answer 3

Thanks!