Home
Class 12
CHEMISTRY
Mole fraction (x ) of a component i...

Mole fraction (x ) of a component is equal to _____.

A

`( "No. of moles of solute ")/("Volume of solution in litre")`

B

`("No. of gram equivalent of solute ")/("Volume of solution in litre")`

C

`("No. of moles of solute")/("Mass of solvent in Kg")`

D

`("No. of moles of any constituent")/( "Total no. of moles of all constituents")`

Text Solution

Verified by Experts

The correct Answer is:
D
Definition of mole fraction.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS AND COLLIGATIVE PROPERTIES

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|45 Videos

  • SOLID STATE

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|30 Videos

Similar Questions

Explore conceptually related problems

Assertion: The weight percentage of a compound A in a solution is given by % of A=("Mass A")/("Total mass of solution")xx100 Reason: The mole fraction of a component A is given by, Mole fraction of A =("No. of moles of A")/("Total no. of moles of all components")

The sum of mole fraction of all components of a solution is unity.

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.

Vapor pressure of a solution of Volatile components and composition of vapor: Consider a solution containing 738 g of water and 253 g of ethanol (C_(2)H_(5)OH) at 323 K . At this temperature, the vapour pressure of pure ethanol is 0.292 atm and the vapor pressure of pure water is 0.122 atm . Calculate the vapour pressure of the solution and mole fraction of every component in vapour phase. Strategy: First calculate the moles and the mole fraction of each component in the liquid solution. Then apply Raoult's law to each of the two volatile components to calculate their partial pressures. The total vapour pressure is the sum of the partial vapour pressures of the components and the mole fraction of a components in a gaseous mixture equals the ratio of its partial pressure to the total pressure.

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

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

At a certain temperature, the vapour pressure of pure ether is 640 mm and that of pure acetone is 280 mm . Calculate the mole fraction of each component in the vapour state if the mole fraction of ether in the solution is 0.50.

How is the mole fraction of a gaseous component related to its partial pressure and the total vapour pressure?

MARVEL PUBLICATION-SOLUTIONS AND COLLIGATIVE PROPERTIES-TEST YOUR GRASP
  1. Mole fraction (x ) of a component is equal to .

    Text Solution

    |

  2. Ideal solution is formed when its components

    Text Solution

    |

  3. Pressure cooker reduces cooking time because :

    Text Solution

    |

  4. Which of the following 0.1 M aqueous solutions will exert highest osmo...

    Text Solution

    |

  5. In which mode of expression, the concentration of a solution remains i...

    Text Solution

    |

  6. If 18 g of glucose is present in 1000 g of solvent, the solution is sa...

    Text Solution

    |

  7. Partial pressure of solvent in solution of non-volatile solute is give...

    Text Solution

    |

  8. Relative lowering of vapour pressure

    Text Solution

    |

  9. A solution of CaCl(2) is 0.5 mol/litre , then the moles of chloride io...

    Text Solution

    |

  10. How much volume of 3.0 M H(2)SO(4) is required for the preparation of ...

    Text Solution

    |

  11. Which of the following is a colligative property ?

    Text Solution

    |

  12. Molal elevation constant is elevation in boiling point produced by

    Text Solution

    |

  13. The vapour pressure of a solution having solid as solute and liquid as...

    Text Solution

    |

  14. The determination of molar mass from elevation in boiling point is cal...

    Text Solution

    |

  15. The semipermeable membrane used in Berkely -Hartley method is

    Text Solution

    |

  16. 1 mole heptane (V.P = 92 mm of Hg) is mixed with 4 mol. Octane (V.P = ...

    Text Solution

    |

  17. The vapour pressure of water at room temperature is 30 mm of Hg. If th...

    Text Solution

    |

  18. The values of gas constant and solution constant

    Text Solution

    |

  19. When a non volatile solute is dissolved in a solvent, the relative low...

    Text Solution

    |

  20. Isotonic solutions have :

    Text Solution

    |

  21. If 23 g of glucose ( molecular mass 180)is dissolved in 60ml of water ...

    Text Solution

    |