It is of interest to decide if an analytical separation of the
metal ions can be effected by selective precipitation of carbonates
from a solution that is 0.108 M in
Fe2+ and 0.101 M in
Ca2+.
FeCO3
Ksp =
3.50×10-11
CaCO3
Ksp =
3.80×10-9
To analyze this problem, answer the following questions.
(1) What carbonate concentration is needed to precipitate 99.9% of
the metal that forms the least soluble
carbonate? M
(2) When 99.9% of the least soluble carbonate has precipitated,...