Solutions, colligative property conceptual doubt

The number of moles of acetic acid here are = 45 number of moles of H2O here are = 150 We use the Kf of water here to get the correct answer because water has more moles But acetic acid is definitely not negligible here Suppose we had 99 moles of acetic acid and 100 moles of water. Would we still use the exact Kf of water? why? if there were 101 moles of acetic acid and 100 moles of water, would we suddenly use the Kf of acetic acid? how does this work
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@Dexter
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Opt
Opt3w ago
Acetic acid means glacial acetic acid na? It's not a solvent at all
Nimboi
NimboiOP3w ago
oh interesting wait how would colligative properties work if the solute was liquid liquid-liquid solution
Opt
Opt3w ago
Raoult's Law applies I presume there. We haven't defined our colligative properties for liquid-liquid solutions in twelfth I'm pretty sure.
Nimboi
NimboiOP3w ago
ah oke so for solid-liquid freezing point of the solution = freezing point of solvent
Opt
Opt3w ago
Yeah, we consider a 'non volatile' solute
Nimboi
NimboiOP3w ago
yeah
Opt
Opt3w ago
Liquids, though they may be really stable, will still technically volatile to a point.
Nimboi
NimboiOP3w ago
ahh okay
Opt
Opt3w ago
Abysmally low vapour pressure is still non-zero
Nimboi
NimboiOP3w ago
makes sense, thank u +solved Opt
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