The Methyl amine having the weak base (Kb = 4.4 x 10-4). How many mL of 0.410 M HBr are needed to reach the equivalence point when a 35.0 mL sample of 0.250M CH3NH2 is titrated with a strong acid such as HBr, ? Find out the pH at the equivalence point? Explain the pH after 6.70 mL of HBr has been added?