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A weak base with a concentration of 1.3 mol/L has a percent ionization of 0.72%. What is the Kb of this weak base?

  • chemistry -

    Write the ionization for the weak base. I would call it BOH.
    Write the Kb expression.
    Set up an ICE chart if that will help.
    I would call BOH 1.3 M, then concn B^+ = 1.3 x 0.0072.
    The unionized BOH is 1.3 x 0.9928,
    Substitute these into Kb expression and solve for Kb. post your work if you need further assistance.

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