{"knowledge_schema": {"broad_category": "Chemistry \u2192 Acid-Base Reactions \u2192 Titration", "refinement": "This problem involves the titration of a weak acid (acetic acid) with a strong base (sodium hydroxide) and determining the pH at the equivalence point.", "specific_scope": "The focus is on calculating the pH of the solution at the equivalence point of the titration, where all the acetic acid has reacted with NaOH.", "goal": "To find the pH at the equivalence point of the titration, which involves understanding the properties of the resulting solution after the reaction."}, "summary": "This problem is centered around the titration of acetic acid with sodium hydroxide, a strong base. At the equivalence point, all the acetic acid has been neutralized, resulting in a solution of sodium acetate. The pH at this point is determined by the hydrolysis of the acetate ion, leading to a basic solution. The correct answer, 8.52, reflects the basic nature of the solution formed at the equivalence point."}