The alkene 3-methyl-1-butene is reacted with Br₂ in aqueous solution. Br₂, H₂O

1. Most margarines have been hydrogenated to maintain a soft, homogeneous mixture. While the product is easy to spread, this has made the product an unhealthy choice. A hydrogenation reaction is used to convert an alkene to an alkane. a carboxylic acid to an aldehyde. an alkene to a ketone an aromatic hydrocarbon to a linear hydrocarbon

Draw the structure of trans-1,3-diethylcyclopentane

1,4-Pentadiene (CH2=CH-CH2-CH=CH2) is a liquid at room temperature and has a density of 0.66 g/mL and molar mass of 68.12 g/mol. In a laboratory experiment, 3.80 mL of this compound was treated with 4.80 mL of conc. H2SO4 (100% w/w; molar mass 98.08 g/mol). Note that the density of conc. H2SO4 is 1.84 g/mL. The resulting sulfate ester was then treated with 1.20 mL of water (molar mass 18.02 g/mol) affording, after work- up, 2,4-pentanediol (molar mass 104.15 g/mol) as the crude product. The crude product was then purified by simple distillation, which yielded 2.00 g of pure product.   a.  Provide a balanced chemical equation to show the reaction between 1,4-pentadiene and sulfuric acid. Do not use molecular formulas in the chemical equation except for sulfuric acid.   b.  What reactant is the limiting reagent in this chemical equation? Show calculations to support your answer.

Alkenes can be converted to alcohols by reaction with mercuric acetate to form a β-hydroxyalkylmercury(II) acetate compound, a reaction called oxymercuration. Subsequent reduction with NaBH4 reduces the C–Hg bond to a C–H bond, forming the alkyl alcohol, a reaction called demercuration. Draw the structures of the Hg-containing compound(s) and the final alcohol product(s) formed in the following reaction sequence, omitting byproducts. If applicable, draw hydrogen at a chirality center and indicate stereochemistry via wedge-and-dash bonds.