{"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 after the complete neutralization of acetic acid by NaOH, considering the properties of the resulting salt (sodium acetate) in solution.", "goal": "Determine the pH at the equivalence point of the titration, which involves understanding the dissociation of the salt formed and its effect on the pH."}, "summary": "This problem is centered around the titration of acetic acid, a weak acid, with sodium hydroxide, a strong base. At the equivalence point, all the acetic acid is neutralized, forming sodium acetate, which affects the pH of the solution. The task is to calculate the pH at this point, which is typically higher than 7 due to the basic nature of the acetate ion. The correct answer is 8.52, indicating that the solution is basic at the equivalence point."}