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Synthesis and Analysis of Alkenes Using 2-Bromoheptane and Alkoxides

This laboratory experiment focuses on the synthesis of alkenes through the reaction of 2-bromoheptane with different alkoxides (sodium methoxide and potassium t-butoxide) in methanol and t-butanol as solvents. Key physical data for these compounds, including molecular weight, boiling point, density, and hazard information, will be systematically recorded. The experiment will follow a general chemical equation and meticulous procedures referencing the lab manual. Observations such as yield calculations, GC analysis, and physical properties will be documented in detail.

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Synthesis and Analysis of Alkenes Using 2-Bromoheptane and Alkoxides

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  1. LABORATORY NOTEBOOK(Pre-lab) • TITLE AND DATE • OBJECTIVES • TABLE OF PHYSICAL DATA • Include the MW, bp, density, and hazard information for 2-bromoheptane, cis-2-heptene, trans-2-heptene, 1-heptene, methanol, and t-butanol. • Include the MW, mp, and hazard information for sodium methoxide and potassium t-butoxide. • CHEMICAL EQUATION • Include the general chemical equation from page 99. • PROCEDURE • Include a brief outline of the procedure for the experiment. Do NOT copy directly from the lab manual. • Include a reference to the lab manual including page numbers where the actual procedure can be found.

  2. LABORATORY NOTEBOOK(In-lab) OBSERVATIONS/CALCULATIONS • Identity of base and solvent pair • Initial weight of 2-bromoheptane • Initial weight of base used • Initial volume of alcohol used • VR setting for reflux • VR setting for distillation • Theoretical yield calculation • % yield calculation • Physical state and color of product • GC vial slot # • Give an example of an adjusted area % calculation

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