Find the ph of a buffer that consists of 0.18 m ch3nh2 and 0.73 m ch3nh3cl (pkb of ch3nh2 = 3.35)?

Hello!

First, we need to determine the pKa of the base. It can be found applying the following equation:



Now, we can apply the Henderson-Hasselbach's equation in the following way:



So, the pH of this buffer solution is 10,04

Have a nice day!