CH3COO-(aq) + H2O(l).....>CH3COOH(aq) + OH(aq)
CH3COOH (aq) + H2O(l).....> H3O(aq) + CH3COO-(aq)
20.00 mL of 0.100M NaOH and 20.00 mL of 0.100M acetic acid was added to 20.00 mL of 0.100M acetic acid and 20.00 mL of distilled water with a pipette in a 100 mL beaker and buffer solution was formed. Determine the molarities of CH3COOH and CH3COO- ?