• 2021-04-14
    醋酸(HAc)在pH=3.0时(pKa=4.74),溶液中Ac-的分布系数(δ)为
  • 0.018

    内容

    • 0

      pH=3.0的醋酸溶液HAc分布系数δ1 =0.982

    • 1

      0.1mol·L-1HAc溶液中,已知pKa(HAc)=4.74 A: [HAc]=[H3O+]+[Ac-] B: [H3O+]=[Ac-] C: [H3O+]=[OH-]+[Ac-] D: [H3O+]=[HAc]+[Ac-]

    • 2

      【填空题】计算pH=3.74的NaAc-HAc缓冲溶液中[HAc]/[Ac - ]= 10 。(已知pKa(HAc)=4.74)

    • 3

      pH=3.0的醋酸溶液HAc(Ka=1.8×)分布系数δ1 =0.98。/ananas/latex/p/4645

    • 4

      pH=6.0的醋酸溶液Ac-分布系数δ0 =0.052。( )