1. The problem statement, all variables and given/known data A known mass of methylamine, CH3NH2, was dissolved in water at 25 celsius 50.0 cm^3 of this solution was taken and titrated with 1.00x10^-1 mol dm^-3 hydrochloric acid solution, HCL(aq). The change in pH as an increasing volume of hydrochloric acid was added is shown in the graph below: (Didn't scan the graph) 2. Relevant equations These are the equations I think are relevant. n=m/Mr n=cv 3. The attempt at a solution I'm quite lost at what to do from here so help would be appreciated.