1. The problem statement, all variables and given/known data A student prepares two solutions: Solution A is prepared by mixing 50cm3 of 0.100mol dm-3 CH3COOH(aq) with 25cm3 of 0.100mol dm-3 NaOH(aq) Solution B is prepared by mixing 25cm3 of 0.200mol dm-3 CH3COOH(aq) with 50cm3 of 0.100mol dm-3 NaOH(aq) Explain why solution A is a buffer solution, but solution B is not. 2. Relevant equations None 3. The attempt at a solution I believe it is because of the reaction CH3COOH(aq) + NaOH(aq) ↔ CH3COONa(aq) + H2O(aq) In solution A, the reacants are in the same proportion (concentration wise) as the stoichiometric constants ij the equation, but in solution B the concentrations are in the ratuo 2:1.