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Using the lineraized Poisson-Boltzmann equation, calculate the positive and negative charge concentrations, C+(x) and C-...

Using the lineraized Poisson-Boltzmann equation, calculate the positive and negative charge concentrations, C+(x) and C-(x), and the electric potential V(x), at a distance x from a charged plane in a salty solution. If the charge per unit area on the plane is sigma=e/a, derive a condition on the area a that makes the linear approximation valid. Assume a salt concentration of Cinfinity= 100mM

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