CH3NH2(aq) + H2O(l) ⇄ CH3NH3+(aq) + OH−(aq) Kb = 4.4 × 10−4 Methylamine, CH3NH2, is a weak base that — Equilibrium Chemistry Question

CH₃NH₂(aq) + H₂O(l) ⇄ CH₃NH³⁺(aq) + OH−(aq) Kb = 4.4 × 10−4

Methylamine, CH₃NH₂, is a weak base that reacts with water according to the equation above. A student obtains a 50.0 mL sample of a methylamine solution and determines the pH of the solution to be 11.77.