{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Reaction Mechanisms", "refinement": "This problem involves understanding the reactions of organic compounds, specifically the behavior of liquids in the presence of bromine water and platinum, as well as the concept of disproportionation and hydrogenation.", "specific_scope": "The focus is on the reactions of two equimolar mixtures of liquids, their interaction with bromine water, and the resulting products after hydrogenation, leading to the determination of the number of hydrogen atoms in the original liquids of mixture X.", "goal": "Calculate the total number of hydrogen atoms in the two liquids of mixture X based on the information provided about their reactions and the final hydrocarbon product."}, "summary": "This problem is rooted in organic chemistry, specifically focusing on the reactions of two liquid mixtures with bromine water and platinum. The task involves understanding the disproportionation reaction and subsequent hydrogenation that leads to a hydrocarbon with a specific mass fraction of hydrogen. The goal is to determine the total number of hydrogen atoms in the two liquids of mixture X, which is given as 18. This requires analyzing the chemical behavior of the mixtures and their products."}