Question

please explain the mechanism of micelle formation with suitable examples.

Answer 1

Vegetable oil (groundnut oil, castor oil etc... ) or animal fat when heated with sodium hydroxide (NaOH), sodium salt of fatty acid and glycerol; which are consisted of micelle.
There are two parts of the structure; one part of a long hydrocarbon chain known as nonpolar tail.(it does not possess attraction towards water but possesses attraction towards dirt and stain)
While the other negatively charged part
(-COONa or - SO3Na) is known as head (it possesses attraction towards water molecules.
When polar part remains in water, it possesses attraction towards water. The spherical structure formed around the stain is 'micelle'.

Answer 2

:

Answer:Micelles are formed by association of such molecule sin which both lyophilic and lyophobic parts are present . Such molecules are called surface active molecules .Example :Hydrocarbon chain in soap, sodium stearate

Answer:Micelles are formed by association of such molecule sin which both lyophilic and lyophobic parts are present . Such molecules are called surface active molecules .Example :Hydrocarbon chain in soap, sodium stearate C17 H35 COONa is lyophobic hydrophobic while - COONa is lyophilic or hydrophilic..The hydrocarbon tails are in the interior of the micelle and COO ions the surface . The grease stain absorbed in to the interior of the micelle which behaves like liquid hydrocarbon . As the strain is detached from the fabric , the dirt particles sticking to the strain are aslo removed.