If the osmotic pressure of a 0.010M aqueous solution of sucrose at 27 texto textC is 0.25atm , then the osmotic pressure of a 0.010M aqueous solution of NaCl at 27 texto textC is

Question

If the osmotic pressure of a 0.010M aqueous solution of sucrose at 27 texto textC is 0.25atm , then the osmotic pressure of a 0.010M aqueous solution of NaCl at 27 texto textC is (A) 0.062 atm (B) 0.12 atm (C) 0.25 atm (D) 0.50 atm

Tardigrade Admin · Accepted Answer

Osmotic pressure = texti textC textR textT , For both the solutions, all other conditions are similar except texti which is 1.0 for sucrose while 2.0 for NaCl. Therefore, osmotic pressure of NaCl =2× 0.25 =0.50 texta textt textm

Q. If the osmotic pressure of a $0.010 M$ aqueous solution of sucrose at $2 7^{o} C$ is $0.25 a t m$ , then the osmotic pressure of a $0.010 M$ aqueous solution of $N a Cl$ at $2 7^{o} C$ is

0.062 atm

0.12 atm

0.25 atm

0.50 atm

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

Q. If the osmotic pressure of a 0.010M aqueous solution of sucrose at 27oC is 0.25atm , then the osmotic pressure of a 0.010M aqueous solution of NaCl at 27oC is