{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Compound Identification", "refinement": "This problem involves the use of spectroscopic techniques (FTIR, NMR, and Mass Spectrometry) to deduce the structure and formula of an organic compound.", "specific_scope": "The focus is on interpreting the data from FTIR, 1H NMR, and Mass Spectrometry to identify the unknown compound from a set of possible chemical formulas.", "goal": "Determine the correct chemical formula of the unknown compound based on the provided spectroscopic data."}, "summary": "In this problem, we are tasked with identifying an unknown organic compound using FTIR, 1H NMR, and Mass Spectrometry data. The FTIR spectrum indicates the presence of functional groups, with a broad peak at 3000 cm\u207b\u00b9 suggesting O-H or N-H bonds, and strong peaks at 1700 and 1650 cm\u207b\u00b9 indicating carbonyl (C=O) and possibly conjugated carbonyls. The 1H NMR spectrum shows vinyl-hydrogens, suggesting the presence of alkenes. The mass spectrum fragment at m/z = 45 indicates the presence of an acyl group. Based on this analysis, the correct chemical formula of the unknown compound is C6H10O2."}