00:02
Okay, so here we want to know why it's important to allow our solution to cool slowly after we've dissolved it into the hot solvent.
00:10
So this is pertaining to recrystallization.
00:13
And so there's a few answers that are correct here.
00:16
So first, the first answer here is to allow time for impurities to be excluded in the crystal lattice.
00:22
This one would be correct because as the solution cools slowly, those crystals will begin to form.
00:29
And they're going to form in the most energetically favorable way.
00:32
And so by making, allowing the impurities to be excluded, that's going to make the crystal more energetically favorable, so that's going to be referred.
00:42
However, if it's recrystallizing quickly, it might not have the time to do that, and impurities can get trapped on the insides of the crystal.
00:49
So by cooling slowly, it allows for the solution to move the impurities away from the crystallized forms.
00:59
So this corresponds to the next answer to allow for more stable and symmetrical crystal lattice.
01:04
So this one is also correct because as it goes slowly, the impurities are excluded, and this in turn makes the most energetically favorable crystal lattice, which is strong and symmetrical and stable...