Chemical Forums
Chemistry Forums for Students => Physical Chemistry Forum => Topic started by: rj1027 on October 10, 2004, 05:53:17 PM
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How do i calcultate the Ksp value of Antimony oxide? Kb2O3.
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This is quite serious problem. Sb2O3 do not simply dissolve in water, but it reacts with water to form at least two species: SbO(OH) and Sb(OH)3 with Ksp 7.9x10^-18 [SbO(+) + OH(-)] and 4.0 x 10^-42 [Sb(3=) + 3OH(-)].
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This cannot be done accurately without using a program that calculates the relative abundance of each of of the complexes present, such as COMICS or FREEQC. Doing this using a calculator and your brain would be extremely complicated!