APFIVE Relationship Between Ka and pKb
The ionization of a weak acid, HA, is represented by the equation HA + H₂O ⇌ H₃O⁺ + A⁻. Given that the acid-dissociation constant, Ka, for HA is 1.8 × 10-5, what is the pKb of the conjugate base, A⁻?
A
14.00
B
9.26
C
5.56 × 10-10
D
4.74
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