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The solubility of amorphous silica is 0.002 m SiO2 at 25 C and 1 bar pressure....

The solubility of amorphous silica is 0.002 m SiO2 at 25 C and 1 bar pressure. The solution contains silicic acid, H4SiO4, whose first dissociation constant is 10^(-9.9). What is the pH of a solution saturated with amorphous SiO2?

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