Choose the aqueous solution below with the highest freezing point. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable. A) 0.200 mol kg^-1 Ca(ClO₄)₂ B) 0.200 mol kg^-1K₃PO₃ C) 0.200 mol kg^-1HOCH₂CH₂OH D) 0.200 mol kg^-1Ba(NO₃)₂ E) These all have the same freezing point.

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Quizplus · Accepted Answer

The freezing point depression depends on the number of particles in solution. HOCH₂CH₂OH (ethylene glycol) does not dissociate into ions, so it has the lowest van't Hoff factor (i = 1), resulting in the least depression of the freezing point compared to the other ionic compounds which dissociate into multiple ions.

Choose the Aqueous Solution Below with the Highest Freezing Point