The flask is charged with 0.80 g magnesium turnings, THF (45 mL), 4-bromo-N,N-dimethylaniline (5.0 g), and...

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The flask is charged with 0.80 g magnesium turnings, THF (45mL), 4-bromo-N,N-dimethylaniline (5.0 g), and asmall crystal of iodine. The mixture is warmed gently to reflux(set the hot plate to 200 Â°C) and maintained there for 30 min,during which time the original dark reddish-brown color changes tothe typical â€œdirty dishwaterâ€ shade of the Grignard reagent. Checkwith your TA to ensure this has indeed happened.
The flask is cooled to room temperature (ice-water bath). Besure to keep the solution dry. After 15 min. diethyl carbonate(0.49 g) in 5 mL of THF is added in one portion. The mixture iswarmed to reflux for an additional 5 min, and then cooled again toroom temperature (ice-water bath). Aqueous hydrochloric acid (15 mLof a 10% solution) is added
Write the theoretical yield of your product, crystalviolet

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4.1 Ratings (655 Votes)

Answer We are given mass of Mg 080 gMass of4bromoNNdimethylanilineC8H10BrN 50 g mass of diethyl carbonate 049 g Aqueous hydrochloricacid 15 mL of a 10 solutionFrom the given procedure reactions as follow Now we need to calculate the limiting reactant and for thatpurpose we need to calculate the moles of each reactant as followWe knowMoles given mass molar massMoles of Mg 080 g 080 24305 gmol1 00329 molesMoles of See Answer

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