Asolution has a ca2+ concentration of 0.049 m and an f- concentration is 0.147 m at equilibrium. the value of ksp for caf2 at 25°c is 4.0 x 10-11. will this solution form a precipitate?

The solution will precipitate.

Explanation:

For a solid to precipitate, its ionic product should be more than the solubility product.

will form its respective ions in the solution as:

Ionic product =

Given that:

So,

Ionic product = 0.049 × (0.147)² = 0.00106

Given =

Ionic product > Solubility product

The solution will precipitate.

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explanation:

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