The solubility equilibrium can be:

CaF2(s) <> Ca2 (aq) 2 F-(aq)

If you happen to can calculate Delta Go for this response, you possibly can then calculate Ksp from that:

Delta Go = [-553.04 2(-276.5)] (-1162) = 55.96 kJ/mol

DeltaGo = RT ln Ksp

5.596X10^4 J/mol = (8.314 J/molK) (298K) ln Ksp

ln Ksp = -22.59

Ksp = 1.55X10^-10

This post is last updated on hrtanswers.com at Date : 1st of September – 2022