• 2022-10-24
    用A4+ 滴定B2+ 时,已知φϴ'(B4+/B2+)=0.16V,φϴ'(A4+/A3+)=1.66V,滴定至化学计量点时的电极电势φsp等于
    A: 0.66V
    B: 1.16V
    C: 0.91V