Introduction to qualitative Analysis PRELAB Exercise: In your lab notebook, rewrite and complete the flow diagram below for the separation of Groups A through D. This is due at the beginning of lab lecture THE FIRST DAY of the QUALITATIVE ANALYSIS EXPERIMENT. snt = supernatant ppt = precipitate IMPORTANT: When completing the flowchart you MUST SHOW THE CORRECT PHYSICAL STATE OF EACH CATION. 1. ALL PPT must be written as the complete salt with the counter ions. Example PbCl₂. 2. ALL SNT are either written as free ions, Zn2+ or as complex ions, Zn(NH3)²+. You should show the correct form. THE COUNTER IONS NEED NOT BE SHOWN in the SNT. Reread the background information if you are unsure of the physical state of a cation in any step! Ag+, Pb2+, Mn²+, Fe³+, Bi³+, Al³+, Cr³+, Ca²+, Ba²+, Sr²+, Ni²+, Cu²+, Zn²+, Mg²+ snt 6 M HCI 6 M NH3, pH 9-10 ppt Add precipitating agent X (to be determined later) snt ppt ppt AgCl, PbCl₂ Group A Group B 6 M NaOH, H₂O₂ snt ppt Group C BaX, CaX, SrX Group B2 Group B1 Group D

Introduction to qualitative Analysis PRELAB Exercise: In your lab notebook, rewrite and complete the flow diagram below for the separation of Groups A through D. This is due at the beginning of lab lecture THE FIRST DAY of the QUALITATIVE ANALYSIS EXPERIMENT. snt = supernatant ppt = precipitate IMPORTANT: When completing the flowchart you MUST SHOW THE CORRECT PHYSICAL STATE OF EACH CATION. 1. ALL PPT must be written as the complete salt with the counter ions. Example PbCl₂. 2. ALL SNT are either written as free ions, Zn2+ or as complex ions, Zn(NH3)²+. You should show the correct form. THE COUNTER IONS NEED NOT BE SHOWN in the SNT. Reread the background information if you are unsure of the physical state of a cation in any step! Ag+, Pb2+, Mn²+, Fe³+, Bi³+, Al³+, Cr³+, Ca²+, Ba²+, Sr²+, Ni²+, Cu²+, Zn²+, Mg²+ snt 6 M HCI 6 M NH3, pH 9-10 ppt Add precipitating agent X (to be determined later) snt ppt ppt AgCl, PbCl₂ Group A Group B 6 M NaOH, H₂O₂ snt ppt Group C BaX, CaX, SrX Group B2 Group B1 Group D

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 102AP

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