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If O.P. of 1 M of the following in water can be measured, which one will show the maximum O.P.

  • Option 1)

    AgNO3

  • Option 2)

    MgCl2

  • Option 3)

    (NH4 )3 PO4

  • Option 4)

    Na2SO4

 

Answers (1)

As we learned 

 

Application of Vant Hoff factor -

(a)\: \: \: \left ( \frac{\Delta P}{P^{0}} \right )_{obs}= X_{solute}\times i

(b)\: \: \: \left ( \Delta T_{b} \right )_{obs}= K_{b}\times m\times i

(c)\: \: \: \left ( \Delta T_{f} \right )_{obs}= K_{f}\times m\times i

(d)\: \: \: \left ( \pi \right )_{obs}= C\times R\times T\times i

-

 

 (NH4 )3 PO gives maximum ion. Hence, its osmotic pressure is maximum.

 


Option 1)

AgNO3

Option 2)

MgCl2

Option 3)

(NH4 )3 PO4

Option 4)

Na2SO4

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subam

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