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How do you evenly dissolve a very small volume of liquid in a larger volume of liquid?
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2018-11-23 at 1:37 AM UTCFirst off: Why I'm posting this here.
Let's say you have a tincture that is x milligrams of substance X, and you dissolve it in y milliliters of solvent Y.
Now, since solvent Y is lethal at doses above a certain threshold, the chemist then wants to dissolve solution XY into another solvent (Z) of z milliliters.
You want to be able to ensure that a randomly selected quantity of this liquid contains the expected amount (in milligrams) of substance X as per the substance x / solvent y ratio.
Is it physically (chemically) possible to accomplish this task?
And if so, how do you determine the right second solvent (Z)? -
2018-11-23 at 1:38 AM UTC...ummmmm
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2018-11-23 at 1:41 AM UTCDepends entirely on the solubility of the solute.
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2018-11-23 at 1:42 AM UTCOr the solidity of the solid?
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2018-11-23 at 1:43 AM UTC
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2018-11-23 at 1:43 AM UTC
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2018-11-23 at 1:44 AM UTCOr does the initial substance X have to be soluble in BOTH SOLVENTS... SHIT, that makes sense. I didn't think of that.
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2018-11-23 at 1:46 AM UTC
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2018-11-23 at 1:52 AM UTC
Originally posted by Odigo Messenger - Now With Free 911 Service Not precisely no, but if it's stirred fairly well it won't matter.
Oh yeah, because solvent Y might not EVENLY distribute in solvent Z?
Do all solutions, by definition, evenly distribute?
Sorry, I only did like first year uni chemistry, and that was over a decade ago. -
2018-11-23 at 1:59 AM UTC
Originally posted by gadzooks Oh yeah, because solvent Y might not EVENLY distribute in solvent Z?
Exactly. Like oil in water will mix briefly, but then clump together due to hydrophobia, and then gather at the top due to being less dense.Do all solutions, by definition, evenly distribute?
No, although osmotic pressure will push them to mix there are other forces at play, like molecular weight, hydrophobia, etc.
Giving that shit a good stir usually overwhelms those slight forces though.Sorry, I only did like first year uni chemistry, and that was over a decade ago.
I made it all the way to the start of third year before dropping out lol :) -
2018-11-23 at 2 AM UTC
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2018-11-23 at 2:07 AM UTCop, You are requesting a response that requires specialized, esoteric knowledge. It is probably best that you seek answers elsewhere... none of us are chemists. Perhaps a book, encyclopedia, or online Journal?
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2018-11-23 at 2:34 AM UTC
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2018-11-23 at 2:38 AM UTCI saw that. 😎
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2018-11-23 at 2:44 AM UTC
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2018-11-23 at 3:17 AM UTC
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2018-11-23 at 8:44 AM UTC
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2018-11-23 at 9:05 AM UTC