Toluene would be the most soluble in..

[pharmacycoffee]

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a) H2O
b) NH3
c) CH3-O-CH3
d) CH3CH3

This is a question in my Dr Collins packet. It says the answer is C, but I thought it would be D. I thought that toluene was nonpolar because it contains all C-C and C-H bonds, but some other sites say that toluene is polar. Any ideas?

 

[eddy327]

My Dr. Collins has the same questions except it is
A. NH3
B. H2O
C. CH3OH
D.C6H6

Answer is C with explanation "Toluene, a hydrocarbon, is soluble in a hydrocarbon".

 

[romaniangirl]

Toluene is a polar molecule because it has that methyl group on top so it needs a polar hydrocarbon as a solvent.

 

[mimkt]

I have the same questions but my packet says toluene is soluble in CH6H6 & CH3CH3. Toluene is definitely non-polar.
Both my explanation says "it is non-polar like toluene".

 

[pharmacycoffee]

mimkt, is your example coming from a Collins packet? If so, that inconsistency is annoying. I've thought toluene was nonpolar too since it has all C-H bonds.

 

[mimkt]

Yep, I have the most recent Collins too. One of my friends has an older version and hers said the same thing as mine. I'm not sure why yours would say C bc it looks like it's polar due to the symmetry shape & the oxygen dipole.