Which of the following solutes,dissolved in 1000 g of water,would provide a solution with the lowest freezing point? A)0.030 mol of barium chloride,BaCl₂ B)0.030 mol of urea,CO(NH₂)₂ C)0.030 mol of calcium sulfate,CaSO₄ D)0.030 mol of acetic acid,CH₃COOH E)0.030 mol of ammonium nitrate,NH₄NO₃

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Barium chloride (BaCl2) dissociates into three ions (one Ba^2+ and two Cl^-), which produces the greatest number of particles in solution. This results in the largest decrease in freezing point according to the colligative property of freezing point depression.

Which of the Following Solutes,dissolved in 1000 G of Water,would