The following diagrams represent aqueous solutions of three different monoprotic acids (HA, HB, and HC). Which conjugate base (A-, B-, or C-) has the smallest Kb? Which conjugate base is the strongest of the three? = HA, HB, or HC = H3O+ = A-, B-, or C- HA HB HC The conjugate base with the smallest Kb is A-. The strongest of the three conjugate bases is C-.
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The conjugate base is what remains after an acid has donated a proton (H+). The strength of a conjugate base is inversely related to the strength of its parent acid. This means that the stronger the acid, the weaker its conjugate base, and vice versa. Show more…
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