Question

A living cell contains a solution which is isotonic with 0.2 M glucose solution. What osmotic pressure develops when the cell is placed in 0.05 M $BaC{l}_2$ solution at 300K?

• A. 1.23 atm
• B. 3.69atm
• C. 6.15 atm
• D. None of these

Answer 1

The correct option is A 1.23 atm

(a) $\pi =(i{C}_1-i_2{C}_2)RT$
$\Rightarrow (1\times 0.2-3\times 0.05)0.0821\times 300$
$\Rightarrow 1.23$ atm