Solutions Question 377
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 $ 0.05MBaCl_2 $ solution at 300 K-
Options:
A) 1.23 atm
B) 3.69 atm
C) 6.15 atm
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
For non electrolyte solute (glucose) i = 1 For $ BaCl_2\rightarrow B{a^{2+}}+2C{l^{-}} $ i= 3 (100% ionized) $ i=( numberofionsafierionization\times \alpha )+( 1-\alpha ) $
$ =( 3\times 1 )+( 1-1 )=3 $
$ \pi =(iC_1-i_2C_2)RT $
$ \Rightarrow ( 1\times 0.2-3\times 0.05 )0.0821\times 300 $
$ \Rightarrow 1.23,atm $
