Question

suppose as student returned some unused lead nitrate to the container marked sodium nitrate. what could the student do to get all the lead ions out from the sodium nitrate?

Answer 1

Add a solution of sodium chloride to the lead nitrate to precipitate Pb(NO3)2, while the sodium nitrate remains aqueous

Answer 2

Ian, I think you mean PbCl2 will ppt, while Na(NO3)2 remains in aqueous soln.