Which of the following aqueous solutions will have the lowest osmotic pressure? A)0.10 m KOH B)0.10 m RbCl C)0.05 m CaSO ₄ D)0.05 m BaCl ₂ E)0.10 m K ₂SO ₄

Question

Quizplus · Accepted Answer

Osmotic pressure depends on the total concentration of solute particles in solution. KOH, RbCl, and K2SO4 dissociate into ions in solution, increasing the number of particles. CaSO4 and BaCl2 also dissociate, but the concentration of CaSO4 (0.05 m) is lower than the others, resulting in fewer particles and thus the lowest osmotic pressure.

Which of the Following Aqueous Solutions Will Have the Lowest