Question

What is the pH of a solution prepared by mixing 50.00 mL of 0.10 M methylamine, CH3NH2, with 20.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl? Assume that the volume of the solutions are additive and that Kb = 3.70 10-4 for methylamine.
A) 10.17
B) 10.57
C) 10.97
D) 11.78

Answer

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