Which of the following will have the lowest freezing point? A) 0.2 M acetic acid, CH₃COOH, will have the lowest freezing point. B) 0.1 M potassium sulfate, K₂SO₄, will have the lowest freezing point. C) 0.2 M ethylene glycol, C₂H₆O₂, will have the lowest freezing point. D) All of these will have the same freezing point.

Question

Quizplus · Accepted Answer

0.1 M potassium sulfate (K2SO4) will have the lowest freezing point because it dissociates into three ions (2 K+ and 1 SO4^2-), which increases the number of particles in solution more than the other options, leading to a greater depression of the freezing point according to the colligative properties.

Which of the Following Will Have the Lowest Freezing Point