What is the pH of a 2.54 M methyl amine solution, NH2(CH3)? ?

What is the pH of a 2.54 M methyl amine solution, NH2(CH3)?  
The Kb value of the weak base methyl amine is 5.0 x 10 -4.
  
a. 11.10
   
b. 13.21
   
c. 12.55
   
d. 10.70

ChemTeam2021-04-08T02:05:57Z

Before viewing the solution, the answer is 12.55, if you wanted to try it on your own.

For a solution to your problem, go here:

https://www.chemteam.info/AcidBase/Kb-Intro.html

and look at Example #4.