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March 26, 2017

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A- a water soluble salt forms a precipitant during Group 3 analysis. An acidic solution of this precipitant and NaBiO3 yields a pinkish color. This same salt has no reaction to concentrated H2SO4 or AgNO3, what is the chemical formula for this salt?

B- a brown colored salt contains a cation from group 3, it has no reaction with concentrated H2SO4 and produces a soluble product with acidic AgNO3 and acidic BaCl2, this salt is not water soluble. What is the chemical formula for this salt?

  • Chemistry - ,

    A.
    Mn is in group III and it is oxidized to pink MnO4^- with NaBiO3. The anion probably is sulfate but a confirmatory test would be necessary to be certain; therefore, the salt probably is MnSO4.

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