Solubility of Zinc Hydroxide in Basic Solution The solubility-product constant f

Question

Solubility of Zinc Hydroxide in Basic Solution The solubility-product constant for Zn(OH)2 is Kgp = 3.00 x 10"16 The formation constant for the hydroxo complex, Zn(OH)4-, is K{ = 4.60 x 1017 A solubility-product constant. Ksp. corresponds to a reaction with the following general format: salt(s) doublearrow cation(aq) + anion(aq) A formation constant. Kf. corresponds to a reaction with the following general format: metal ion(aq) + Lewis base(aq) doublearrow complex ion(aq) When Zn(OH)2(s) was added to 1.00 L of a basic solution. 1.15x10_2mol of the solid dissolved. What is the concentration of OH- in the final solution? Express your answer with the appropriate units.

Explanation / Answer

the ppt 3.00 e-10 = [Zn+2] [OH-]^2 so [Zn+2] = 3.00 e-10 / [OH-]^2 the comlpex ion 4.6 e17 = [Zn(OH)4^2-] / [Zn+2] [OH-]^4 so [Zn+2] = [Zn(OH)4^2-] / [OH-]^4 (4.6 e17) I read this : "When Zn(OH)2 (s) was added to 1.00 L of a basic solution, 1.13

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