{"knowledge_schema": {"broad_category": "Chemistry \u2192 Stoichiometry \u2192 Empirical Formula Determination", "refinement": "This problem involves analyzing the combustion products of a compound to determine its elemental composition.", "specific_scope": "The focus is on calculating the moles of carbon and hydrogen from the combustion products (CO2 and H2O) and then finding the empirical formula based on the mole ratio of the elements.", "goal": "To derive the empirical formula of the compound by determining the ratio of moles of carbon, hydrogen, and oxygen present in the original sample."}, "summary": "This problem involves determining the empirical formula of a compound containing carbon, hydrogen, and oxygen based on the products of its complete combustion. By analyzing the mass of CO2 and H2O produced, we can calculate the moles of carbon and hydrogen in the original sample. The empirical formula is then derived from the mole ratio of these elements, leading to the conclusion that the empirical formula of the compound is C2H6O."}