Consider the titration of a 25.0mL sample of 0.175molL(-1) CH_(3)NH_(2) with 0.150molL(-1) HBr. Determine each quantity:
a. the initial pH
b. the volume of added acid required to reach the equivalence point

Options:
a. The initial pH of the system
b. The volume of the added acid at the equivalence point
c. The concentration of CH_(3)NH_(2)
d. The concentration of HBr