Question

If the osmotic pressure of a $0.010M$ aqueous solution of sucrose at $27^{\text{o}}\text{C}$ is $0.25atm$ , then the osmotic pressure of a $0.010M$ aqueous solution of $NaCl$ at $27^{\text{o}}\text{C}$ is

• A. 0.062 atm
• B. 0.12 atm
• C. 0.25 atm
• D. 0.50 atm

Answer 1

Answer: (D)

Osmotic pressure $=\text{i}\text{C}\text{R}\text{T}$ , For both the solutions, all other conditions are similar except $\text{i}$ which is 1.0 for sucrose while 2.0 for NaCl.
Therefore, osmotic pressure of NaCl
$=2\times 0.25$
$=0.50 \, \text{a}\text{t}\text{m}$