Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this primary hydration sphere is composed of six water molecules. The hydrated metal ion acts as a weak acid, undergoing a stepwise hydrolysis in which it donates an H* ion from its water ligands to the surrounding free water molecules. Shown is the hydrolysis of Al(H,O)+ (pKa = 4.85) in water. Al(H, O);*(aq) + H,01) = H;0*(aq) + Al(H, O),OH²+(aq) Calculate the pH of a 0.00151 M AICI, solution and determine what fraction of the aluminum is in the form Al(H,O),OH?+ pH = dAI(H, O), (OH)*

Metal ions in aqueous solutions are solvated, or hydrated, by water molecules. Typically this primary hydration sphere is composed of six water molecules. The hydrated metal ion acts as a weak acid, undergoing a stepwise hydrolysis in which it donates an H* ion from its water ligands to the surrounding free water molecules. Shown is the hydrolysis of Al(H,O)+ (pKa = 4.85) in water. Al(H, O);(aq) + H,01) = H;0(aq) + Al(H, O),OH²+(aq) Calculate the pH of a 0.00151 M AICI, solution and determine what fraction of the aluminum is in the form Al(H,O),OH?+ pH = dAI(H, O), (OH)*

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter26: Molecular Absorption Spectrometry

Section: Chapter Questions

Problem 26.15QAP

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