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- Jun 6, 2015
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Question: What is the reason why methylene chloride is miscible in Hexane?
My reasoning is #2 below:
Methylene Chloride is a polar molecule due to the 2 dipole-dipole interactions bonds (C-Cl) -|->
Hexane is a nonpolar molecule due to the dispersion/london/vdw forces.
1. Peers say they are miscible because methylene chloride is actually a non-polar molecule. So like dissolves like, nonpolar would mix with nonpolar molecules.
But I am for sure methylene chloride is polar.....
2. Is it because methylene chloride and hexane have a similar IMF attraction? Just the CH2 in methylene chloride is attracted to the dispersion forces in hexane? Does the 2 Cl not play any role in the reasoning?
I want a confirmation, because I often just look at the nonpolarity & polarity, and sometimes forget about the IMF behind it (H-bonding, dispersion, dipole-dipole), even though sometimes they are related.
That being said,
1. two molecules that can H-bond will always be miscible/soluble (if with under 4 carbons)
2. two molecules that has dispersion forces, will always be miscible/soluble.
3. what will happen if the two molecules have dipole-dipole interactions, are the at all attracted?
misciblility and solubility is interchangeable right?
My reasoning is #2 below:
Methylene Chloride is a polar molecule due to the 2 dipole-dipole interactions bonds (C-Cl) -|->
Hexane is a nonpolar molecule due to the dispersion/london/vdw forces.
1. Peers say they are miscible because methylene chloride is actually a non-polar molecule. So like dissolves like, nonpolar would mix with nonpolar molecules.
But I am for sure methylene chloride is polar.....
2. Is it because methylene chloride and hexane have a similar IMF attraction? Just the CH2 in methylene chloride is attracted to the dispersion forces in hexane? Does the 2 Cl not play any role in the reasoning?
I want a confirmation, because I often just look at the nonpolarity & polarity, and sometimes forget about the IMF behind it (H-bonding, dispersion, dipole-dipole), even though sometimes they are related.
That being said,
1. two molecules that can H-bond will always be miscible/soluble (if with under 4 carbons)
2. two molecules that has dispersion forces, will always be miscible/soluble.
3. what will happen if the two molecules have dipole-dipole interactions, are the at all attracted?
misciblility and solubility is interchangeable right?