• 2022-06-03
    将等浓度、等体积的K[img=7x22]1803dd4c4d3ca27.png[/img]C[img=7x22]1803dd4c5671fa8.png[/img]O[img=7x22]1803dd4c611de59.png[/img]与KHC[img=7x22]1803dd4c6a33487.png[/img]O[img=7x22]1803dd4c7268c7d.png[/img]水溶液混合后,溶液的pH值为( )。
    A: p[img=29x26]1803dd4c7b6aa00.png[/img](H[img=7x22]1803dd4c8388dd2.png[/img]C[img=7x22]1803dd4c8c6be03.png[/img]O[img=7x22]1803dd4c951601c.png[/img])
    B: p[img=29x26]1803dd4c9f55d1e.png[/img](H[img=7x22]1803dd4c8388dd2.png[/img]C[img=7x22]1803dd4c8c6be03.png[/img]O[img=7x22]1803dd4c951601c.png[/img])
    C: [img=9x43]1803dd4cc317bfb.png[/img](p[img=29x26]1803dd4ccc4bd6a.png[/img]+p[img=29x26]1803dd4cd54d421.png[/img])
    D: p[img=29x26]1803dd4cdeb40a6.png[/img]-p[img=29x26]1803dd4ce7a7dfb.png[/img]