You have at your disposal 3 1-pound bags of various pure salts that dissolve readily in water. You can add one of the bags to a 55 gallon barrel of water. Which bag should you use to lower the freezing point by the greatest amount? (1 lb. = 0.454 kg) A) Bag of KCl B) Bag of MgCl₂ C) Bag of Ba(NO₃)₂ D) Either B or C

Question

Quizplus · Accepted Answer

MgCl₂ dissociates into three ions (Mg²⁺ and 2 Cl^-), providing the highest van't Hoff factor, which results in the greatest depression of the freezing point.

You Have at Your Disposal 3 1-Pound Bags of Various