Determine Minimum pH for Precipitate Formation
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What is the minimum pH at which aluminum hydroxide,
Al(OH)3 will precipitate from a 0.020 M Al(NO3)3 solution. Consider activity effects.
The Ksp for Al(OH)3 is 3x10^(-34).
Assume the pH can be changed without increasing the solution volume.
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Solution Summary
The solution explains, through calculations, how to determine the minimum pH for precipitate formation.
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because,
Al(OH)3 = (Al+++) + 3(OH-)
Ksp of Al(OH)3 = 3*10^(-34) < [Al+++]*[OH-] => for ...
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