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Design a separation scheme to separate cations, Al3+, Cu2+, Ni2+, Ag+.

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Chemistry

Design a separation scheme to separate cations, Al3+, Cu2+,Ni2+, Ag+.

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4.5 Ratings (613 Votes)
First ions are removed in groups from the initial aqueous solution After each group has been separated then testing is conducted for the individual ions in each group Here is a common grouping of cations Group I Ag Hg22 Pb2 Precipitated in 1 M HCl Group II Al3 Cd2 Co2 Cr3 Fe2 and Fe3 Mn2 Ni2 Zn2 Precipitated in 01 M H2S solution at pH 9 4 Ag Add 15 drops of 6M NH3H2O to the centrifuge test tube with 15 drops of Group I solution CuNH34 2aq 4H aq Cu2aq 4NH4 aq AgNH32 aq 2H aq Ag aq 2NH4 aq 10 drops of 6 M HCl to the supernatant in part B and stir the solution Ag aq Cl aq AgCls white precipitate shows that Ag is most likely present Centrifuge decant and save the supernatant If copper ions are present the solution may appear light    See Answer
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