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? %
