An aqueous solution is 18.7% by mass Na₃PO₄.What is the boiling point of this solution? The K_b for water is 0.512°C/m.Consider if the solute is an electrolyte or a nonelectrolyte.

Question

Quizplus · Accepted Answer

Na₃PO₄ is an electrolyte and dissociates into 4 ions (3 Na⁺ and 1 PO₄³⁻). The boiling point elevation is calculated using ΔT_b = i * K_b * m, where i = 4, K_b = 0.512°C/m, and m is the molality. The solution's boiling point is 100°C + ΔT_b, resulting in approximately 102.89°C.

An Aqueous Solution Is 18