Question

a grignard synthesis begins with 6.00 g of bromobenzene and ends with 3.56 g benzoic acid. what is the percent yield of the benzoic acid? assume all other reagents are in excess.

Answer 1

The percent yield of the benzoic acid is 59.33 %

Grignard averages should not contain acidic hydrogens as they are destroyed when they are on the compound. A Grignard reaction is an organometallic chemical reaction in which an alkyl, allyl, vinyl, or aryl magnesium halide adds to the carbonyl group of an aldehyde or ketone. This reaction is important for the formation of carbon-carbon bonds.

Calculation:-

percentage yield = calculated/theoretical

                            =  3.56/6.00 × 100

                           = 59.33 %

The carbon atoms of Grignard reagents are partially negatively charged, so they resemble carbanions and react with electrophiles. Grignard reagents are highly reactive reactants used synthetically to form new carbon-carbon bonds. Grignard reagents are made by reacting alkyl halides with magnesium in the presence of dry ether. Chemistry: Grignards are very important reagents in chemistry as they can be used to form a wide variety of compounds.

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