The solubility product of aluminum hydroxide (Al(OH)3) is 1.9x10–33. Derive an equation for the concentration of Al3+ in water as a function of pH if the water is saturated with Al(OH)3. If the concentration of Al3+ in water cannot exceed 10 micromolar (because all the aluminum has dissolved), at what pH would you expect the product of the Al3+ concentration and the PO43− concentration to be a maximum? Explain your reasoning.

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Answered: The solubility product of aluminum…

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter14: Chemical Equilibrium

Section: Chapter Questions

Problem 14.84QE

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The solubility product of aluminum hydroxide (Al(OH)₃) is 1.9x10^–33. Derive an equation for the concentration of Al³⁺ in water as a function of pH if the water is saturated with Al(OH)₃.

If the concentration of Al³⁺ in water cannot exceed 10 micromolar (because all the aluminum has dissolved), at what pH would you expect the product of the Al³⁺ concentration and the PO₄³⁻ concentration to be a maximum? Explain your reasoning.

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