• 2022-06-06
    已知[img=53x22]1803d7de36a935c.png[/img]的pKa1=2.12,pKa2=7.20,pKa3=12.36,则共轭碱PO4[img=17x22]1803d7de407c2d2.png[/img]的pKb1值为( )
    A: 11.88
    B: 9.32
    C: 6.80
    D: 1.64