(a) Calculate how many milliliters of 0.100 M HCl should be added to how many grams of sodium acetate dihydrate (NaOAc*2HO,FM118.06) to 2 prepare 250.0 mL of 0.100 M buffer, pH 5.00 . (b) If you mixed what you calculated, the pH would not be 5.00 . Describe how you would actually prepare this buffer in the lab. Please show step by step !! :) 9-20. (a) Calculate how many milliliters of 0.100 M HCl should be added to how many grams of sodium acetate dihydrate (NaOAc 2H2O, FM 118.06) to prepare 250.0 ml. of 0.100 M buffer, pH 5.00. (b) If you mixed what you calculated, the pH would not be 5.00. Describe how you would actually prepare this buffer in the lab.