• 2022-06-29
    (NH4)2HPO4水溶液的质子条件式(PBE)正确的是( )。
    A: [H+]+[H2PO4-]+[H3PO4] = [OH-]+[NH3] +[PO43-];
    B: [H+]+[H2PO4-]+2[H3PO4] = [OH-]+[NH4+]+[PO43-];
    C: [H+]+[H2PO4-]+2[H3PO4] = [OH-]+[NH3] +[PO43-];
    D: [H+]+[H2PO4-]+[H3PO4] = [OH-]+[NH3] +2[HPO42-]。