What differentiates the Group 3A Cations from the Group 3B cations How do we prevent the precipitation of the Group 3B cations in the qualitative analysis of the Group 3A cations? 2. In the qualitative analysis of the Group 3A cations and the Group 3B cations, respectively, why do we need to boil the Ammonium Chloride, NH4Cl solution before the addition of the main precipitating reagent?

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Chapter16: Solubility And Complex Ion Equilibria
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Problem 9RQ: When 5 M ammonia is added to a solution containing Cu(OH)2(s), the precipitate will eventually...
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1. What differentiates the Group 3A Cations from the Group 3B cations How do we prevent the precipitation of the Group 3B cations in the qualitative analysis of the Group 3A cations?

2. In the qualitative analysis of the Group 3A cations and the Group 3B cations, respectively, why do we need to boil the Ammonium Chloride, NH4Cl solution before the addition of the main precipitating reagent?

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