How much of 0.3 M ammonium hydroxide should be mixed with 30 mL of 0.2 M solution of ammonium chloride to give buffer solution of pH 8.65 and 10? ( = 4.75)

How much of 0.3 M ammonium hydroxide should be mixed with 30 mL of 0.2

1.	How much of 0.3 M ammonium hydroxide should be mixed with 30 mL of 0.2 M solution of ammonium chloride to give buffer solution of pH 8.65 and 10? ( = 4.75)
Answer» eirjrhrjrjrjrkrjrknrjrjrjr