CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
Two carbonic-acid–based mixtures are prepared. Mixture A is 0.20 M NaHCO₃ and 0.20 M Na₂CO₃. Mixture B is 0.010 M NaHCO₃ and 0.50 M Na₂CO₃. Which mixture will fail to behave effectively as a buffer? Briefly explain.