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Question
Draw the diagram showing mcelle formation by the
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Solution
Sodium lauryl sulphate (SLS) is an example of anionic detergent. They dissociate in water as shown.
CH3−(CH2)10−CH2OSO−3Na+
H2O↓
CH3−(CH2)10−CH2−OSO−3Na+
These anions are present on the surface with their −OSO−3 group in water and hydrocarbon part staying away from it. At higher concentration, these anions are pulled into the bulk of the solution andd form an aggregate of spherical shape with their hydrocarbon part pointing towards the centre and −OSO−3 part outwards on the surface of the sphere
In the above micelle formation, oso−3 ions
stay on the periphery of the micelle.
CH3−(CH2)10−CH2OSO−3Na+
H2O↓
CH3−(CH2)10−CH2−OSO−3Na+
These anions are present on the surface with their −OSO−3 group in water and hydrocarbon part staying away from it. At higher concentration, these anions are pulled into the bulk of the solution andd form an aggregate of spherical shape with their hydrocarbon part pointing towards the centre and −OSO−3 part outwards on the surface of the sphere
In the above micelle formation, oso−3 ions
stay on the periphery of the micelle.
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