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Standard XI

Chemistry

Van't Hoff Factor

A 5.25

Question

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molecular mass = 60g/mole) in the same solvent . If the densities of both the solutions are assumed to be equal to 1g/cc, molar mass of substance will be

210.0g/mole

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90.0g/mole

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115.0g/mole

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105.0g/mole

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Solution

The correct option is A 210.0g/mole

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Similar questions

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molecular mass = 60g/mole) in the same solvent . If the densities of both the solutions are assumed to be equal to 1g/cc, molar mass of substance will be

Q. A

5.25

solution of a substance is isotonic with a

1.5 %

solution of urea (molar mass =

60 g m o l^{- 1})

in the same solvent. If the densities of both the solutions are assumed to be equal to

1.0 g c m^{- 3}

, molar mass of the substance will be:

Q. A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (Molar mass

= 60 g/mol

) in the same solvent.
If the densities of both the solutions are assumed to be equal to

1 {g/cm}^{3}

, the molar mass of the substance will be:

Q. A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass = 60 g mol

^{- 1}

) in the same solvent. If the densities of both the solutions are assumed to be equal to 1.0 gcm

^{- 3}

, molar mass of the substance will be :

Q. At certain temperature,

1.6

% solution of an unknown substance is isotonic with

2.4

% solution of urea. If both the solutions have the same solvent and both the solution have same density

1 g m / {c m}^{3}

, what will be the molecular mass of unknown substance in

g m / m o l

.
(Molecular mass of urea

60 g m / m o l

)

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