{"knowledge_schema": {"broad_category": "Chemistry \u2192 Acid-Base Reactions \u2192 Solubility and pH Calculations", "refinement": "This problem involves the dissolution of a sparingly soluble compound (Fe(OH)3) in the presence of a strong acid to determine the necessary volume of acid and the resulting pH of the solution.", "specific_scope": "The focus is on calculating the minimum volume of a 0.1 M strong acid required to dissolve a specific mass of Fe(OH)3 and to find the pH of the resulting solution after the acid is added.", "goal": "Calculate the volume of the strong acid needed to dissolve the Fe(OH)3 and determine the pH of the solution after the acid is added."}, "summary": "This problem is centered around acid-base chemistry, specifically the dissolution of a sparingly soluble compound (Fe(OH)3) in a strong acid solution. The task requires calculating the minimum volume of a 0.1 M monobasic strong acid needed to dissolve 0.1 g of Fe(OH)3 in a total volume of 100 cm3, and subsequently determining the pH of the resulting solution. The solution involves stoichiometric calculations and understanding the relationship between concentration, volume, and pH in acid-base reactions."}