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Experiment 21: Analysis of Group III Ions
Qualitative Analysis – determination of the types of ions present in
Objective: Analyze a sample that contains a subgroup of Group III
cations, namely, Fe+3, Ni+2, Cr+3, and Al+3.
The ions are precipitated from solution as insoluble sulfides,
hydroxides, or in the case of nickel, as an insoluble complex. Each
cation will precipitate from solution with a distinctive color.
Read over the general analysis scheme starting on page 21-6 in the
lab manual and use the information presented to help...
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