Calculate the Debye length for a \(0.1-\mathrm{M}\) solution of a univalent \((1,1)\) electrolyte, i.e., one with single-charged cations and single-charged anions, in water.

If the surface has a negative charge with a zeta potential of \(100 \mathrm{mV}\), plot the concentrations of the co-ions and counterions near the electrode surface. The co-ion is defined as the ion with the same charge as the electrode. Repeat for a divalent \((2,2)\) electrolyte. Which case has the larger Debye length?