Which solution will have the lowest osmotic pressure when measured against pure water?
A)0.10 M sodium chloride
B)0.10 M sodium sulfate
C)0.10 M sodium sulfide
D)0.10 M sodium phosphate
E)0.10 M sodium carbonate

Question

Quizplus · Accepted Answer

Osmotic pressure is related to the concentration of solutes in a solution. Among the given options, sodium chloride (NaCl) will have the lowest osmotic pressure when measured against pure water. This is because NaCl dissociates into two ions (Na+ and Cl-) in solution, while the other options (sodium sulfate, sodium sulfide, sodium phosphate, and sodium carbonate) all dissociate into more than two ions, resulting in a higher concentration of solutes and, therefore, a higher osmotic pressure.

Which Solution Will Have the Lowest Osmotic Pressure When Measured