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In a solution there are .100 M Ca2+ and 0.100 M Ba2+. Can they be separated...

In a solution there are .100 M Ca2+ and 0.100 M Ba2+. Can they be separated quantitatively using NaF solution as a precipitating reagent? (Ksp, CaF= 5.3*10^-9, Ksp, BaF= 1.0*10^-6). Show work please.

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Answer #1

Thus, when fluoride ion concentration is 0.00023 M, calcium fluoride will precipitate.

Hence, when fluoride ion concentration is 0.00023 M, barium fluoride will not precipitate.

Thus, we can quantitatively separate barium fluoride from calcium fluoride.

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