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View Full Version : Even on warming why hexane does not dissolve in concentrated H2SO4?


pushpa_bhagat
Feb 9, 2011, 09:18 AM

Unknown008
Feb 9, 2011, 11:25 AM
What do you know about polar solvents and non-polar solvents?

pushpa_bhagat
Feb 9, 2011, 10:01 PM
Mainly polar solvent are miscible with water whereas nonpolar ar not miscible with water.
&polar solvent usually has OH BOND, nonpolar has CO BOND.
Charges ar unequally distributed in polar solvent , in nonpolar equally distributed. Thatis I KNOW ONLY THIS MUCH.

Unknown008
Feb 9, 2011, 10:28 PM
Hm... nonpolar doesn't necessarily have CO bond, because CO by itself is polar!

By definition, a non-polar substance doesn't have any resultant polarity, that is the positive and negative charges cancel each other out. This happens when the centre of charges in a molecule coincide.

But here, what you need to know is that:
Polar solutes dissolve in polar solvents only.
Non-polar solutes dissolve in non-polar solvents only.

H2SO4 is a polar solute.
Hexane is a non-polar solvent.

Hence, they don't dissolve in each other.

pushpa_bhagat
Feb 10, 2011, 09:57 PM
OK thank u