# Chemistry (entropy)

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**help please** on
.

Calculate the Ksp of CaF2 (2 is subscript).

The problem wants it calculated with all or one of the following:

G = -1162 kJ/mol

H = -1215 kJ/mol

S = 68.87 J/mol*k

The answer is 1.55*10^(-10). How do I do this?