Recrystallization | MIT Digital Lab Techniques Manual 

I had 2 lab courses simultaneously during 2 semesters of covid. We just had to put on a mask and get to it. Was horrible, couldn't see anything with the protective glasses fogging up haha

me lol

Yes, and corona lol

yup, even 3 years later lol

I would assume that to be the case, in general.

anyone doing organic chem assignments for pearson mastering chemistry? email me at allen.amani97@gmail.com (incentive provided)

You want all of the compound to dissolve in the solvent (= no crystals) at the point where the solvent would start to boil. But when you cool down the solvent the solubility decreases which leads to forming of compound crystals. When solution has cooled to room temperature you want all of your initial compound to be as crystals, and not dissolved in the solvent, for a maximum yield. Only the impurities should be dissolved in the solvent at room temperature.

Henry law and roult law

Possible with any method, especially reverse additions. One possible cause of oiling out is that drops of the product solution are surrounded by the antisolvent, in which the solubility is very low, and this low solubility creates localized regions with very high supersaturation ratios. Many variables to consider here. Before mixing to the molecular level is achieved, the localized high supersaturation forces the product out of solution without allowing sufficient time for ordering of molecules to enable crystal development. The resulting oily particles have a tendency to clump together before the Occluded solvent migrates throughout the solution. As the mixture is aged, the oiled-out particles may transform into amorphous solids or become "crystalline" (with poor lattice structure)

yesss

do you know whose composer is the music at 10:57 from?

@@pedronuno8892 ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-uMYCETzznCo.html

@@rainlover1964 thanks, but I found it already :)

Ah ouais carrement

Ah oui mange moi la gestion