4.Consider the titration of a 25.0 mL sample f a 0.175 M CH3NH2 with 0.150 M HBr. Determine each quantity below; a. The initial pH b. The volume of added acid required to reach the equivalence point. c. The pH at 5.0 mL of added acid. d. The pH at one-half of the equivalence point. e. The pH at the equivalence point. f. The pH after adding 5.0 mL beyond