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The sum of the mole fraction of the comp...

The sum of the mole fraction of the components of a solution is

A

`0`

B

1

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
B
Definition of mole fraction.
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The sum of mole fraction of all components of a solution is unity.

Calculate the mole fractions of the components of the solution composed by 92g glycerol and 90g water ? (M(water) = 18 , M (glycerol) = 92) .

Knowledge Check

  • Assertion (A): The sum of mole fractions of all the component of a solution is unity. Reason (R ): The mole fraction is a temperature dependent quantity.

    A
    If both `(A)` and `(R )` are correct, and `(R )` is the correct explanation of `(A)`.
    B
    If both `(A)` and `(R )` are correct, but `(R )` is not the correct explanation of `(A)`.
    C
    If `(A)` is correct, but `(R )` is incorrect.
    D
    If `(A)` is incorrect, but `(R )` is correct.

  • Assertion: The sum of mol fractions of all the components of a solution is unity. Reason: Mole fraction is temperature dependent mode of concentrations.

    A
    Both A and R are true and R is the correct explanation of A
    B
    Both A and R are true but R is not a correct explanation of A
    C
    A is true but R is false
    D
    A is false but R is true

  • Sum of mole fractions of the two components of a solution is

    A
    less than one
    B
    equal to one
    C
    more than one
    D
    not fixed

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    A chemist prepared a solution by adding by 230 g of pure ethanol (C_(2)H_(5)OH) to 144 g of water. Calculate the mole fractions of these two components. The molar masses of ethanol and water are 64 g and 18 g , respectively. Strategy: To calculate the mole fractions, we must find the number of moles of ethanol and of water. To find the moles, we must divide the given mass by the respective molar mass. In a two-component system made up of A and B molecules, the mole fraction of a component of a solution, say, component A is written chi_(A) and is defined as Mole fraction of component A= chi_(A) =("moles of A")/("sum of moles of A and B")

    A solution contains 2.5 mol of H_(2) O . Calculation the mole fraction of each component of the solution.

    The sum of mole fractions of the two components of a binary solution is always -

    Mole fraction of the two compounds of a solution have a sum of

    The plot of total vapour pressure as a function of mole fraction of the component of an ideal solution formed by mixing liquids X and Y is

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