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The Acid-Dissociation Constant,K_a,for an Unknown Acid HA Is 4

Question 109

Multiple Choice

The acid-dissociation constant,K_a,for an unknown acid HA is 4.57 × 10^-3.What is the base-dissociation constant,K_b,for the unknown anion A^-?

A) 5.43 × 10^-5
B) 4.57 × 10^-3
C) 7.81 × 10^-6
D) 2.19 × 10^-12
E) 2.19 × 10²

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