Choose the aqueous solution with the lowest vapor pressure.These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable. A)0.120 m C₂H₆O₂ B)0.040 m (NH₄)₂SO₄ C)0.060 m K₂CO₃ D)0.030 m LiC₂H₃O₂ E)They all have the same vapor pressure.

Question

Quizplus · Accepted Answer

The vapor pressure of a solution is lowered by the presence of a solute, and the extent of this lowering is proportional to the number of solute particles. K2CO3 dissociates into 3 ions (2 K+ and 1 CO3^2-), resulting in the highest number of particles and thus the lowest vapor pressure.

Choose the Aqueous Solution with the Lowest Vapor Pressure