An aqueous solution contains 0.361 M dimethylamine ((CH₃)₂NH). How many mL of 0.237 M perchloric acid would have to be added to 225 mL of this solution in order to prepare a buffer with a pH of 10.600?
a) [Fill in the blank] mL
b) 125 mL
c) 175 mL
d) 225 mL
