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 log1O (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

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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 log1O
(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
-552.8
SO4 -2
-744
gypsum
water
-1797.36
-237.14
H4SIO4
quartz
water
-1307.9
-856.3
-237.14
Transcribed Image Text: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 log1O (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 -552.8 SO4 -2 -744 gypsum water -1797.36 -237.14 H4SIO4 quartz water -1307.9 -856.3 -237.14
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