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A solution contains non-volatile solute ...

A solution contains non-volatile solute of molecular mass`M_(2)`which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure?
(`m_(2)` =mass of solute,V=volume of solution,`pi` =osmotic pressure)

A

`M_(2)=((m_(2))/(pi))VRT`

B

`M_(2)=((m_(2))/(V))(RT)/(pi)`

C

`M_(2)=((m_(2))/(V))piRT`

D

`M_(2)=((m_(2))/(V))(pi)/(RT)`

Text Solution

Verified by Experts

The correct Answer is:
B
We know ,`pi=CRT`
`!= =(n)/(V)RT,piV=(m_(2))/(M_(2))RT`
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Knowledge Check

  • A solution contains non-volatile solute of molecular mass M_(2) . Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure? Here n_(2)= mass of solute, V = volume of solution, pi = osmotic pressure.

    A
    `M_(2) = [(m_(2))/(pi)]VRT`
    B
    `M_(2) = [(m_(2))/(V)] (RT)/(pi)`
    C
    `M_(2) = [(m_(2))/(V)] nRT`
    D
    `M_(2) = [(m_(2))/(V)] (pi)/(RT)`

  • A solution contains non-volatile solute of molecular mass M_p . Which of the following can be used to calculate molecular mass of the solute in terms of osmotic pressure (m = Mass of solute, V = Volume of solution and pi = Osmotic pressure)

    A
    `Mp=(m/pi)VRT`
    B
    `Mp=(m/V)(RT)/pi`
    C
    `Mp=(m/V)pi/(RT)`
    D
    `Mp=(m/V)piRT`

  • Which method cannot be used to find out the molecular mass of non-volatile solute

    A
    Victor Mayer's method
    B
    Osmotic pressure method
    C
    Cryoscopic method
    D
    Ebullioscopic method
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