What mass of ammonium chloride must be added to a 0.500 L solution of 0.250 M ammonia to make a buffer with a pH of 9.26? Kb (NH3) = 1.8 × 10–5?
1 answer
I thought I worked this problem for you a couple of days ago. No? Use the HH equation, use x for millimols NH4Cl and use millimols for NH3. Convert x to grams NH4CL. You must first convert Kb to pKb and then to pKa.