Which of the following aqueous solutions will have the highest freezing point? A)0.03 m potassium perchlorate, KClO₄ B)0.05 m sodium iodide, NaI C)0.03 m calcium nitrate, Ca(NO₃)₂ D)0.02 m lithium phosphate, Li₃PO₄ E)0.05 m magnesium sulfate, MgSO₄

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The freezing point depression depends on the van't Hoff factor (i) and molality (m). KClO4 dissociates into 2 ions, NaI into 2, Ca(NO3)2 into 3, Li3PO4 into 4, and MgSO4 into 2. The solution with the lowest product of i and m will have the highest freezing point. KClO4 has the lowest product (0.03 m * 2 = 0.06), resulting in the highest freezing point.

Which of the Following Aqueous Solutions Will Have the Highest