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It is of interest to decide if an analytical separation of the metal ions can be...

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Chemistry

It is of interest to decide if an analytical separation of themetal ions can be effected by selective precipitation of carbonatesfrom a solution that is 9.84×10-2 M in Fe2+ and 9.84×10-2 M inNi2+. NiCO3 Ksp = 6.60×10-9 FeCO3 Ksp = 3.50×10-11 To analyze thisproblem, answer the following questions.

(a) What carbonate concentration is needed to precipitate 99.9%of the metal that forms the least soluble carbonate? M

(b) When 99.9% of the least soluble carbonate has precipitated,will all of the metal that forms the more soluble carbonate stillremain in solution? (yes/no)

(c) What is the upper limit on the carbonate ion concentrationif the more soluble compound is not to precipitate? M

(d) If the [CO32-] is at this upper limit, what percentage ofthe metal that forms the least soluble carbonate remains insolution? %

Answer & Explanation Solved by verified expert
4.1 Ratings (797 Votes)
ans Leas tsoluble FeCO3 sicne it has lower Ksp Q1 find CO32 required to precipitate hte least soluble Ksp Fe2CO32 9999 of Fe2 1009999    See Answer
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