Write and illustrate an explanation of why a polar liquid (call it “A”) and a nonpolar liquid (call it “B”) will not be miscible. Hint: consider the number and energy of three interactions: A–A, A–B and B–B.
6.The rule of “like dissolves like” seems simple enough: nonpolar solutes dissolve in nonpolar solvents, and polar solutes dissolve in polar solvents. At the molecular level, polar solute molecules make hydrogen bonds or dipole-dipole interactions with polar solvent molecules, and nonpolar solute molecules form London or dispersion forces with nonpolar solvent molecules. BUT…any molecule is capable of making London forces with any other molecule, so it seems that even a polar liquid and a nonpolar liquid should be miscible. Write and illustrate an explanation of why a polar liquid (call it “A”) and a nonpolar liquid (call it “B”) will not be miscible. Hint: consider the number and energy of three interactions: A–A, A–B and B–B.
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