Preparation of Buffer Solution: A buffer solution is prepared by mixing equal amount of weak acid and its salt, such as, acetic acid (CH3COOH) and sodium acetate (CH3COONa) or weak base and its salt,...
for pH 4.5 NaOAc buffer solution- 25 ml of 3M sodium acetate mixed w 1475 ml of distilled water; use acetic acid to adjust pH if neededfor pH 5.2 NaOAc buffer solution- 15 ml of 3M sodium acetate...
This might not be the best answer but, preparing a buffer solution allows one to keep the pH value the same when small amounts of acids or bases are added. Buffer solutions resist change in pH....