{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Stereochemistry and Reaction Mechanisms", "refinement": "This problem involves the stereochemical outcomes of reactions involving alkenes and the analysis of products using chromatographic techniques.", "specific_scope": "The focus is on the reactions of (E)-oct-4-ene and (Z)-oct-4-ene with mCPBA and subsequent acid treatment, leading to the formation of epoxides and their hydrolysis products.", "goal": "Determine the number of distinct peaks observed in standard and chiral HPLC for the products of 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 are subsequently hydrolyzed. The (E)-isomer will yield two products: one achiral and one chiral, while the (Z)-isomer will yield a different set of products, including a chiral compound. In standard HPLC, we expect to see 3 distinct peaks due to the different products formed, while in chiral HPLC, we will observe 4 peaks due to the separation of enantiomers. Therefore, the correct answer is 3 peaks in standard HPLC and 4 peaks in chiral HPLC."}