The balanced equation is,
HOC⁻(aq) + H2O(l) ---> HOCH(aq) + OH⁻(aq)
The equation for pKb is ,
pKb = [HOCH][OH⁻]/[HOC⁻]
The negative base-10 logarithm of a solution's base dissociation constant, or Kb, is known as pKb. It is used to gauge an alkaline or base solution's strength, given by , pKb = –log10Kb.
The base is stronger the lower the pKb value. The base dissociation constant calculation is an estimate that is only correct in diluted solutions, just as the computation of the acid dissociation constant, pKa.
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