How would you prepare 30 mL of acetic acid/acetate buffer solution of pH = 5.06?. Assumeyou have 0.1M solutions of both acetic acid and sodium acetate {pKa(acetic acid) = 4.76}

Answer 1

If we knew the molarity you wanted for the buffer we could calculate it. I suppose not knowing the M you must make it up and measure.
So I would take 10 mL of the acetate stock and 10 mL of the acid stock, mix, and add drop wise and with stirring, NaOH until the pH meter reads 5.00. Then add water to make 30 mL, mix, bottle, stopper, etc.