State containing ions from several of the cation groups

Reference no: EM13190105

In analyzing a general unknown containing ions from several of the cation groups, a student treated the decante from Group II with Na3Co(NO2)6 and observed that a precipitate formed. The student reported K+ to be present in the unknown. Do you agree with this student's conclusion? Why or why not?

Reference no: EM13190105

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