Which of the following solutions has the highest osmolarity? A) 0.20 M NaCl B) 0.15 M BaCl₂ C) 0.10 M AlCl₃ D) All have the same osmolarity.

Question

Quizplus · Accepted Answer

BaCl2 dissociates into three ions in solution (Ba2+, 2Cl-), creating a higher overall concentration of solute particles compared to NaCl or AlCl3, which each dissociate into only two ions in solution. Therefore, the solution of BaCl2 has a higher osmolarity.

Which of the Following Solutions Has the Highest Osmolarity