What is the molarity of \( \mathrm{F}^{-} \)ions in a saturated solution of \( \mathrm{BaF}_{2} ...

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What is the molarity of \( \mathrm{F}^{-} \)ions in a saturated solution of \( \mathrm{BaF}_{2} \) ? \( \left(K_{s p}=1.0 \times 10^{-6}\right) \)
(a) \( 1.0 \times 10^{-2} \)
(b) \( 1.0 \times 10^{-3} \)
(c) \( 1.26 \times 10^{-2} \)
(d) \( 6.3 \times 10^{-3} \)
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