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Chapter 8 Phase Equilibrium in Aqueous Solutions
8.1 (a) Calculate the the standard transformed Gibbs eneries for the reaction C02tot = C02(g) + H20 at 283.15 K, 298.15
K, and 313.15 K at pHs 5, 6, 7, 8, and 9 at ionic strength 0.25 M. (b) Plot the Henry's law constants versus pH from pH 2 to
pH 12.
8.2 (a) Calculate the standard transformed Gibbs energies for the reaction C02tot = C02(g) + H20 at 298.15 K and pHs 5,
6, 7, 8, and 9 for ionic strengths of 0, 0.10, and 0.25 M. (b) Plot the Henry's law constants versus pH from pH 3 to pH 9. (c)
Plot logK, as a function of pH at three ionic strengths.
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