Exercise 1 | Buffers and Titration of Acids and Bases
Calculate the pH of a solution that is 0.200 M in ammonia NH3 and 0.300 M in ammonium chloride NH4Cl.
Data: Ka (NH4+/NH3) = 5.62 x 10-10
Henderson-Hasselbalch equation can be used:
pH = pKa + log
pH = -log (5.62 x 10-10) + log
pH = 9.07