Many bases have a nitrogen group with a lone pair called an amine group. When methylamine reacts with water it follows the below process:

CH3NH2 (aq) + H2O (l) --> CH3NH3+ (aq) + OH- (aq)

What is the pH of a 2.54 M solution of CH₃NH₂ at 20 ^oC if the K_b at that temperature is 3.70x10^-4.