Exercise 4: The plot below shows the adsorption of the anionic surfactant SDS (from aqueous solution) on a hydrophobic PS latex surface at three different salt concentrations. a. Calculate in nm2 the area occupied per surfactant molecule (at monolayer level). b. How does CPP change with increasing salt concentration? Why? c. Estimate the CPP values at the three salt concentrations. Do you expect differences in the micellar structure at the three concentrations? Make reasonable assumptions. d. How would the adsorption of SDS on PS change with CPP and why