A water solution of #I_2# is shaken with an equal volume of a nonpolar solvent such as TTE (tri-chlorotrifluoroethane). What is the appearance of this system after shaking?

1 Answer
MeneerNask
Jan 3, 2016

It will be two layers. One will be very pale, and the other will be purple.

Explanation:

Iodine dissolves hardly in water, it will give a pale-brown solution. In a non-polar solvent it will appear purple/violet (depending on the concentration). Most of the #I_2# will move over to the TTE, so the water fraction will become much paler.

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