Calculate the pH of a solution that is 0.200 M in NH3 and 0.300 M in NH4Cl. Calculate the pHchange that takes place when a 100-mL portion of (A) 0.0500 M NaOH and (B) 0.0500 M HCl isadded to 400 mL of the buffer solution. Kb = 1.75 x 10-5
