Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Kb= 6.3×10-5 for trimethylamine, (CH3)3N

and Ka= 1.9×10-5 for hydrazoic acid,HN3)

0.114mol L-1 (CH3)3N(aq)

0.124 mol L-1 HN3(aq)

0.102mol L-1 HI(aq)

0.113mol L-1 KOH(aq)

Provide simple instructions for preparing 1.00 L of a buffer solution having pH = 9.00 at 298 K.  Focus on preparing the buffer that contains the highest possible concentrations of the active components. Your instructions should include the volumes of the solutions required.