{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Stereochemistry and Reaction Mechanisms", "refinement": "This problem involves the analysis of stereoisomers and their transformations through specific reactions, focusing on the products formed and their separation in chromatographic techniques.", "specific_scope": "The reactions of (E)-oct-4-ene and (Z)-oct-4-ene with mCPBA followed by acid treatment, leading to the formation of epoxides and their subsequent hydrolysis, which results in different stereochemical outcomes.", "goal": "Determine the number of distinct peaks observed in standard and chiral HPLC chromatograms based on the products formed from the reactions."}, "summary": "In this problem, we analyze the reactions of (E)-oct-4-ene and (Z)-oct-4-ene with mCPBA, which leads to the formation of epoxides that can be hydrolyzed to form different alcohols. The (E)-isomer and (Z)-isomer will yield different products due to their stereochemistry. In standard HPLC, we expect to see 2 peaks corresponding to the two different products formed from each isomer. In chiral HPLC, we will observe 3 peaks due to the presence of enantiomers and diastereomers resulting from the reactions. Therefore, the correct answer is 2 peaks in standard HPLC and 3 peaks in chiral HPLC."}