chemistry

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Which of the following acids has the weakest conjugate base?
a....4.2E-09
b...9.2E-03
c....6.3E-06
d....1.2E-01

  • chemistry -

    You wrote only the answers. But to answer the unasked question, here is how you do it.
    Kb = Kw/Ka. Kw = 1E-14. Plug in Ka and solve for Kb, then arrange either strong to weak or weak to strong.

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