Qualitative Cation Tests Essay

Lab Report henchmanThis document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiments questions, diagrams if needed, and data tables that should be addressed in a formal lab report. The intent is to speed students writing of lab reports by providing this information in an editable file which john be sent to an instructor.ObservationsQuestionsA. Write net ionic equations for all reactions that get a precipitous.Ag+(aq.) + Cl-(aq.) - AgCl (s)2 Ag+(aq.)+ 2OH- Ag2O (s) + H2O(l)2 Ag+(aq.)+2NH3+ H2O(l) Ag2O (s)+ 2NH4+ (aq.)Pb2+(aq.)+2Cl- (aq.) - PbCl2(s)Pb2+(aq.)+2OH-(aq.) -Pb(OH)2 (s)Pb2+(aq.)+ 2NH3(aq.)+ H2O(l) Pb(OH)2 (s)+ 2NH4+ (aq.) Cu2+(aq.) +2OH-(aq.) - Cu(OH)2 (s)2Cu2+(aq.)+SO42- (aq.) +2NH3(aq.)+2 H2O(l) Cu(OH)2.CuSO4(s) +2NH4+ (aq.) Zn2+ (aq.)+ 2OH- (aq.) - Zn(OH)2 (s)Zn2+ (aq.)+2NH3(aq.)+ H2O(l) Ag2O (s)+ 2NH4+ (aq.)Fe3+ (aq.)+ 3OH- (aq.) - Fe(OH)3(s)Fe3+ (aq.)+ 3NH3(aq.)+ 3H2O(l) Fe(OH)3(s)+ 3N H4+ (aq.) Pb2+(aq.)+ CrO42-(aq.) PbCrO4(s)2Cu2+(aq.)+Fe(CN)64- (aq.) Cu2Fe(CN)6 (s)Zn2+(aq.) + S2-(aq) ZnS(s) 4Fe3+(aq.)+3Fe(CN)64- (aq.) -Fe4Fe(CN)63 (s)Ca2+(aq) + ( COO)22-(aq) Ca(COO)2 (s)B. Identify the cations that effectuate with hydrochloric acid and dissolve in the battlefront of ammonia.Ag+C. Identify the cations that precipitate with hydrochloric acid and do not redissolve in the presence of ammonia.Pb2+D. Identify the cations that precipitate upon asset of both or three drops of atomic number 11 hydroxide and redissolve upon addition of excess sodium hydroxide.Pb2+,Zn2+E. Identify the cations that precipitate upon addition of two or three drops of sodium hydroxide and argon not affected by additional sodium hydroxide.Ag+,Cu2+,Fe3+F.Identify the cations that precipitate upon addition of two or three drops of aqueous ammonia but redissolve upon addition of excess aqueous ammonia.Ag+,Cu2+,Zn2+G. Identify the cations that precipitate upon addition of two or three dro ps of aqueous ammonia and are not affected additional aqueous ammonia.Pb2+,Fe3+H. What simple test would distinguish Ag+ and Cu2+ ?Upon addition of two or three drops of aqueous ammonia, Ag+ produces browned ppt, which is soluble in the excess reagent, resulting in clear, colorless solution.Upon addition of two or three drops of aqueous ammonia, Cu2+ produces blue ppt, which is soluble in the excess reagent but produces dark blue solution.