The concentration of lead ions (Pb^2+) in a sample of polluted water that also contains nitrate ions (NO3) is determined by adding solid sodium sulfate (Na2SO4) to the sample of the water. Write the net ionic equation for the reaction. Do not forget to indicate the state of each species.
2 answers
Pb^+(aq) + SO4^-2(aq) ==>PbSO4(s)
Pb^2+(aq)+SO4^2-(aq) --> PbSO4(s)