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What are micelles ? Give an example of micellar system. |
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Answer» Solution :The particles of colloidal size formed due to aggregation of several IONS or molecules with lyophobic as well as LYOPHILIC PARTS are called micelles. The common micelles system is system of soap and water. In solution, the sodium strearate ions get associated to form ionic micelles of colloidal size. The micelles may contain as many as 100 molecules or more. For example, sodium stearate `(C_17H_35COONa)`when DISSOLVED in water gives `Na^(+)` and `C_17H_35COO^(-)` ions `underset("sodium stearate")(C_17H_35COONa) to underset("stearate ions")(C_17H_35COO^(-) + Na^(+) )` The stearate ions associate to form ionic micelles of colloidal size . |
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