Using the moving boundary method in a 0.010 M HCl solution at 25C, the t+ (transport number of the + ion) is determined. When a current of 3.00 mA is passed through the cell with an area of 3.25 cm^2 for 45 minutes, it is observed that the boundary moves by 2.13 cm. The value of is 412.00 S cm^2 mol^-1. Using these data, a) find the u+ value, b) find the t+ value, c) find the t- value, d) find the u- value.