What would be the outcome of the recrystallization of trimyristin if the followi

Question

What would be the outcome of the recrystallization of trimyristin if the following instructions were provided at the beginning of the Laboratory Period 2? "After standing a minimum of 24 hours, there should be a considerable quantity of crystals in the Erlenmeyer flask. Place the flask in an ice-water bath for at least 20 minutes. Isolate the crystals by brief vacuum filtration an wash them with 2 mL of acetone. Try to get the acetone to come into contact with the majority of crystals."

Please explain your answer! Thanks!

Explanation / Answer

In the first 24 hours you let the atoms to be added slowly together so you will get a very good amount of needles with high purity of the compound. After that you decrease the temperature to lower the solubilty more rapidly so the rest of the compound that is arround in the solution will quickly get together with a needle and so you ca have all the solute out of the solution.

After that you do the vaccum filtration to eliminate as much as possible the solvent from the precipitate (needles) and you wash it with acetone to eliminate the rest of the solvent and you added over the crystals so you can drag all the solvent that is over the crystals.

You use acetone because that will evaporate quickly so ypu will have just the compound in the crystals and when you calculate the yield of the reaction you get the mass more addecuate to the real value.

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