HC2H3O2(aq) + H2O(l) → ← H3O+(aq) + C2H3O2–(aq)
Ka = [H3O+]e[C2H3O2–]e [HC2H3O2]e = 10–pKa = 10–4.77 = 1.7×10–5
Initial3.8×10–5 0 0
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