Which of the following ions should have the most exothermic ΔH_hydration? A) Na⁺ B) Ba²⁺ C) Al³⁺ D) Ca²⁺ E) Sr²⁺

Name: Which of the following ions should have the most exothermic ΔH hydration ? A) Na⁺ B) Ba 2 ⁺ C) Al 3 ⁺ D) Ca 2 ⁺ E) Sr 2 ⁺
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Question

Quizplus · Accepted Answer

The hydration enthalpy is most exothermic for ions with a high charge and small radius. Al³⁺ has the highest charge and a relatively small ionic radius among the given options, leading to the most exothermic hydration enthalpy.

Which of the Following Ions Should Have the Most Exothermic