Solubility of CaF2 is 0.5 × 10-4 mol L-1. The value of Ksp for the salt is

Question

Solubility of CaF2 is 0.5 × 10-4 mol L-1. The value of Ksp for the salt is (A) 5 × 10-12 (B) 2.5 × 10-16 (C) 1 × 10-13 (D) 5 × 10-13

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/088cf23ee1c7eb74ef131f29edfc6aeb-.png" /> Ksp=0.5×10-4×1×10-8 =0.5×10-12 or 5×10-13

Q. Solubility of $C a F_{2}$ is $0.5 \times 1 0^{- 4} m o l L^{- 1}$ . The value of $K_{s p}$ for the salt is

$5 \times 1 0^{- 12}$

$2.5 \times 1 0^{- 16}$

$1 \times 1 0^{- 13}$

$5 \times 1 0^{- 13}$

$K_{s p} = 0.5 \times 1 0^{- 4} \times 1 \times 1 0^{- 8}$
$= 0.5 \times 1 0^{- 12}$ or $5 \times 1 0^{- 13}$

Q. Solubility of CaF2​ is 0.5×10−4molL−1. The value of Ksp​ for the salt is

5×10−12

2.5×10−16

1×10−13

5×10−13