Posted by Stacey on .
Please I need help...I have been trying so hard to finad this answer...
Suggest a test chemical that can be added to the water sample to precipitate the lead(II) ions. please show a chemical eqaution for the formation of the precipitate.
Thank u so much:)
Pb^+2(aq) + SO4^-2(aq) ==> PbSO4(s) (white)
Pb^+2(aq) + 2Cl^-(aq) ==> PbCl2(s) (white)
Pb^+2(aq) + S^-2(aq) ==> PbS(s) (black)
and there are a host of others. sulfite, thiosulfate, carbonate, phosphate, etc.