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 $



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