Qualitative Analysis of Cations Overview Getting Started Techniques Procedure FAQ Full Lab Manual Introduction & Goals Chemistry & Background Key Questions Prelab Problems Safety Procedure In Your Write-up Experiments Index ChemLab Home		Precipitation of Group I Chloride Salts Ag+ + Cl- AgCl (s) Pb2+ + Cl- PbCl2 (s) Confirmation test for lead: Precipitation of Lead Chromate Pb2+ + CrO42- PbCrO4 (s) Confirmation test for silver: Precipitation of Silver Chloride Ag+ + Cl- AgCl (s) Precipitation of Group II Sulfides Cu2+ + S2- CuS(s) Confirmation test for copper: Formation of Cu2+ ion Cu2++ 4 NH3 (aq) Cu(NH3)42+ (aq) Confirmation test for nickel: Formation of Ni(DMGH) complex Ni2+ (aq) + 2 DMGH- (aq) Ni(DMGH)2 (s) Confirmation test for Manganese: Formation of MnO4- ion 2 Mn2+(aq) + 5 HBiO3(aq) + 9 H+(aq) 2 MnO4- (aq) + 5 Bi3+ (aq) + 7 H2O Confirmation test for iron: Fe+3 thiocyanate complex Fe+3 (aq) + 6 SCN- (aq) Fe(SCN)63- (aq)
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