Question

The precipitate of CaF2 (Ksp = 1.7 x 10^-10) is obtained by mixing equal volumes of which of the following?
(a) 10-4 M Ca2+ + 10-4MF
(b) 10-2 M Ca2+ + 10-3MF
(c) 10-5 M Ca2+ + 10-3MF
(d) 10-3M Ca2+ + 10-5 MF
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Answer 1

Answer:

since this is larger than ksp,a precipitate will form. Hence the precipitate of CaF2(KSP=1.7×10^-10)Is obtained when equal volumes are mixed.

Answer 2

Answer:

Correct Answer Is Option B.