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***A 50 mL solution of 0.10 M HC2H2O2 (aq) (K = 1.8 x 10-5) is titrated with 0.20 M NaOH (aq). At the equivalence point is
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Answer #1

HC2H3O2 is a weak acid and NaOH is a strong base , there will be excess OH^- at equivalence point due to strong base (NaOH) and hence solution will be basic at equivalence point.  

Option (a) Basic because of excess OH^- , is the correct answer.

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