98. Solving a chemistry problem

88. In a quartz glass capillary, a flow potential of -26.0 mV was measured for a solution of 1 * 10-3 mol/L KCl at 25 C and an excess pressure of 150 mm Hg. The molar electrical conductivity of the solution is 1.469*10-2 Sm*m2*mol-1, viscosity 0.89*10-3 Pa*s, relative dielectric constant 78.4. Calculate the zeta potential of the glass, assuming the surface conductivity to be zero.