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Name: Prelaboratory Assignment: Qualitative Analysis Group II Cations 1. Prepare a complete flow chart for the procedure and put it on your data sheet.

Name: Prelaboratory Assignment: Qualitative Analysis Group II Cations 1. Prepare a complete flow chart for the procedure and put it on your data sheet.

Chemistry: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter14: Chemical Equilibrium
Section: Chapter Questions
Problem 14.97QE: According to the Resource Conservation and Recovery Act (RCRA), waste material is classified as...
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Prelaboral Date: sie Croun I Cations Supernant AI COH) Colorless, Croc AL #10 QUALITATIVE ANALYSIS OF GROUP II CATIONS Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose, metal cations are broadly classified into three groups based upon their solubilities. Group I cations, Pb2+, Ag+, and Hg2", form insoluble chlorides. Group II cations, Cu2+, Bi2+, Hg2+, Cd2+, Sn4+, Sb3+ form insoluble sulfides below pH 0.5. Group III cations, Al", Cr", Co", Fe, Mn, Ni", Zn, form insoluble sulfides above pH 9. Group IV cations, Ba 2+, Ca2+, Mg2+, Na+, K+, NH4*, are the remaining common cations. The alkaline earth members of this group form insoluble carbonates while the alkaline elements are identified by flame tests. The ammonium ion is detected by a litmus test. These groups are easily separated by their markedly different solubilities. Separating the the cations within a given group is more difficult but based upon same principle, as will be shown in the experimental section. NOTE: THE GROUPS USED FOR QUANTITATIVE ANALYSIS ARE SOLELY BASED ON SOLUBILITY. THEY DO NOT IN ANY WAY CORRESPOND TO THE GROUPS OF THE PERIODIC TABLE. GROUP II CATIONS: Cu, Bi, Sn, Sb³ Describe a procedure you would use to determine th J Sh³+ Name: recipitate Section: 5
Transcribed Image Text:Prelaboral Date: sie Croun I Cations Supernant AI COH) Colorless, Croc AL #10 QUALITATIVE ANALYSIS OF GROUP II CATIONS Qualitative analysis is a method for identifying the elements present in a unknown mixture. For this purpose, metal cations are broadly classified into three groups based upon their solubilities. Group I cations, Pb2+, Ag+, and Hg2", form insoluble chlorides. Group II cations, Cu2+, Bi2+, Hg2+, Cd2+, Sn4+, Sb3+ form insoluble sulfides below pH 0.5. Group III cations, Al", Cr", Co", Fe, Mn, Ni", Zn, form insoluble sulfides above pH 9. Group IV cations, Ba 2+, Ca2+, Mg2+, Na+, K+, NH4*, are the remaining common cations. The alkaline earth members of this group form insoluble carbonates while the alkaline elements are identified by flame tests. The ammonium ion is detected by a litmus test. These groups are easily separated by their markedly different solubilities. Separating the the cations within a given group is more difficult but based upon same principle, as will be shown in the experimental section. NOTE: THE GROUPS USED FOR QUANTITATIVE ANALYSIS ARE SOLELY BASED ON SOLUBILITY. THEY DO NOT IN ANY WAY CORRESPOND TO THE GROUPS OF THE PERIODIC TABLE. GROUP II CATIONS: Cu, Bi, Sn, Sb³ Describe a procedure you would use to determine th J Sh³+ Name: recipitate Section: 5
me: Date: Section: ary Assignment: Qualitative Analysis Group I Cations each of the reactions in the experiment. Supernant Colorles's, Craf Name: Date: Section: Prelaboratory Assignment: Qualitative Analysis Group II Cations 1. Prepare a complete flow chart for the procedure and put it on your data sheet. #9 Cuations describing each of the following reactions:
Transcribed Image Text:me: Date: Section: ary Assignment: Qualitative Analysis Group I Cations each of the reactions in the experiment. Supernant Colorles's, Craf Name: Date: Section: Prelaboratory Assignment: Qualitative Analysis Group II Cations 1. Prepare a complete flow chart for the procedure and put it on your data sheet. #9 Cuations describing each of the following reactions:
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