Which of the following compounds will be most soluble in ethanol ([tex]CH_{3}CH_{2}OH[/tex])?
A. hexane [tex]CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}CH_{3}[/tex]
B. trimethylamine [tex]N(CH_{3})_{3})[/tex]
C. ethylene glycol ([tex]HOCH_{2}CH_{2}OH[/tex])
D. acetone [tex](CH_{3} COCH_{3})[/tex]
E. None of these compounds should be soluble in ethanol.

Please explain how that's correct as well. Thanks!

Question

09-09-2018
Chemistry

contestada

Which of the following compounds will be most soluble in ethanol ([tex]CH_{3}CH_{2}OH[/tex])?
A. hexane [tex]CH_{3}CH_{2}CH_{2}CH_{2}CH_{2}CH_{3}[/tex]
B. trimethylamine [tex]N(CH_{3})_{3})[/tex]
C. ethylene glycol ([tex]HOCH_{2}CH_{2}OH[/tex])
D. acetone [tex](CH_{3} COCH_{3})[/tex]
E. None of these compounds should be soluble in ethanol.

Please explain how that's correct as well. Thanks!

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can someone help me out with this question please?

znk znk · Answer 1 · 2018-09-10T03:08:39+02:00

C. Ethylene glycol should be most soluble in ethanol.

The strongest solvent-solute intermolecular forces determine the solubility of a solute.

A. Hexane is nonpolar, while ethanol has a strong O-H bond dipole. The strongest intermolecular forces are dipole-induced dipole (weak).

B. and D. Ethanol can H-bond to both triethylamine and acetone (strong).

C. Ethanol can H-bond to ethylene glycol. Ethylene glycol has two sites available for H-bonding, so it should be the most soluble in ethanol.

pstnonsonjoku pstnonsonjoku · Answer 2 · 2021-11-05T17:17:23+01:00

The compound which is most soluble in ethanol is ethylene glycol.

The solubility of a substance in another depends on the kind of intermolecular interaction that exists between the molecules. Hence, it is common in chemistry to say that like dissolve like.

Ethanol can interact effectively with ethylene glycol because of the presence of hydrogen bonds owing to the presence of -OH groups on each of the molecules.

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