In a narrow tube, 73 mM LiCI was placed on top of 33.27 mM GdCI3 so that a sharp boundary was produced between them. A current of 5.594 mA was sent downward through the tube, and the boundary, which was always sharp, began to move downward. After 1.10 h, the boundary had swept through a length of the tube containing 1.002 mL solution. Find the transference number of the gadolinium ion at the temperature of the experiment, 25C.