Respuesta :
Answer:
The solution will precipitate.
Explanation:
For a solid to precipitate, its ionic product should be more than the solubility product.
[tex]CaF_2[/tex] will form its respective ions in the solution as:
[tex]CaF_2_{(s)}\rightleftharpoons Ca^{2+}+2F^-[/tex]
Ionic product = [tex][Ca^{2+}][F^-]^2[/tex]
Given that:
[tex][Ca^{2+}]=0.049\ M[/tex]
[tex][F^-]=0.147\ M[/tex]
So,
Ionic product = 0.049 × (0.147)² = 0.00106
Given = [tex]K_{sp}=4.0\times 10^{-11}[/tex]
Ionic product > Solubility product
The solution will precipitate.
