A student made up a saturated solution of a lead salt at 25°C. The student could not remember if they used lead chloride (PbCl2) or lead bromide (PbBr2) to make

up the solution. They were able to measure the lead ion (Pb?") concentration to be 8.07 x 103 M. Using Appendix 2, which lead salt did the student use? Show all working out.