Pre-Assignment

1. How do stable assemblies of micelles form though the ionic head groups are supposed to repel each other?
2. How will the surface tension of a solution vary with the increase in surfactant concentration and why?
3. What will be the effects of larger head groups on micellar structure and aggregation number?
4. The aggregation numbers for nonionic surfactant molecules are often more than that for ionic surfactants. Why?
5. Which ion, the cation or the anion, of an anionic surfactant will reduce the surface tension of water when dissolved in it?

Post-Assignment

1. Can one prepare ionic micelle below the Kraft Temperature?
2. Will there be formation of micelles if one dissolves more than the CMC of a surfactant all at once (not little by little) in water?
3. Once micelles have formed, can surfactant molecules of the micelle exchange with those of other micelles or free surfactant molecules present in solution?
4. Why do the organic substances dissolve into the core of the micelles?
5. Typically do the soaps/detergents form lather easily in surface water or in bore-well water and why?