.
The standard free energies of formation of 
and of 
are, respectively,
-54 and 
.
Quiz 6 Name(s):
The solubility of cobalt (II) fluoride is 0.15mol/L at 298K. Estimate the free energy of formation of solid cobalt (II) fluoride.
Data: .
The standard free energies of formation of
and of are, respectively,
-54 and .
Formula: 
Note: Because the solubility of this ionic compound is relatively high, the resulting solution does not behave ideally and this calculation will only give a rough estimate.