Identify the correct conjugate base for the hydrated cation in an aqueous medium. — Ionic Equilibrium Chemistry Question
Question
Identify the correct conjugate base for the hydrated cation $[Al(H_2O)_6]^{3+}$ in an aqueous medium.
Answer: A
💡 Solution & Explanation
A conjugate base is formed when a Bronsted acid loses a single proton ($H^+$). When the complex ion $[Al(H_2O)_6]^{3+}$ loses one proton from one of its water ligands, it becomes $[Al(H_2O)_5(OH)]^{2+}$.
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