Calculate the solubility of CaF2 in water at . You'll find data in the ALEKS Data tab. Round your answer to significant digits.

Explanation:

Hello,

In this case, the dissociation of calcium fluoride is:

And the equilibrium expression is:

Which is useful to compute the molar solubility, symbolized by as the reaction extent:

In such a way, since the solubility product of calcium fluoride at 25 °C is 3.45x10⁻¹¹, the molar solubility is found to be:

And the solubility, considering its molar mass 78.08 g/mol is:

Regards.

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.