A chemist titrates 90.0 mL of a 0.2917M butanoic acid (HC₂H,CO₂) solution with 0.7411M KOH Solution at 25 °c. Calculate the pH at equivalence. The pk of butanoic acid is 4.82. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of коH Solution added.

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