• 2021-04-14
    【单选题】下列溶液用酸碱滴定法能准确滴定的是
    A. 0.1 mol/L HF                  (pKa = 3.18) B. 0.1 mol/L HCN              (pKa = 9.21) C. 0.1 mol/L NaAc                 [pKa(HAc) = 4.74] D. 0.1 mol/L NaAc                 [pKa(HAc) = 4.74]