Thermodynamics help! Calculate the equilibrium constant at 25 degrees C for both of the following minerals (gypsum and quartz) using Gibbs free energy.

Express the answers in terms of both log10 (K) and pK in three significant figures

The answers are not 1.29 or 3.75 positive or negative. I tried to add the water number instead of subtracting it in the equation but that also came up incorrect so i'm not sure where to go from there

Ca+2 SO4-2 gypsum water -552.8 -744 -1797.36 -237.14 H4SiO4 quartz water -1307.9 -856.3 -237.14