KCl is a strong electrolyte while sucrose (table sugar) is not. Which of the following lists 0.10 m KCl, 0.10 m sucrose, and pure water in order of increasing boiling point?

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Quizplus · Accepted Answer

The boiling point elevation is a colligative property, meaning it depends on the number of particles in solution. KCl dissociates into two ions (K+ and Cl-), increasing the number of particles in solution and thus raising the boiling point more than sucrose, which does not dissociate. Pure water has the lowest boiling point because it has no solute particles.

KCl Is a Strong Electrolyte While Sucrose (Table Sugar) Is