What is the theoretical van't Hoff factor () for a dilute aqueous solution of the strong electrolyte — Solutions and Colligative Properties Chemistry Question
Question
What is the theoretical van't Hoff factor ($i$) for a dilute aqueous solution of the strong electrolyte Barium hydroxide, $Ba(OH)_2$? (Assume complete $100\%$ ionization).
Answer: C
💡 Solution & Explanation
Barium hydroxide is a strong base that completely dissociates in water according to $Ba(OH)_2 \rightarrow Ba^{2+} + 2OH^-$. This produces a total of $1 + 2 = 3$ ions per formula unit. For $100\%$ ionization, $i = n = 3$.
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