Home
Class 12
CHEMISTRY
The vapour pressure lowering caused by t...

The vapour pressure lowering caused by the addition of 100 g of sucrose (molecular mass = 342) to 1000 g of water, if the vapour pressure of pure water at `25^@C` is 23.8 mm Hg, is

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    PATHFINDER|Exercise QUESTION BANK|250 Videos

  • SOLUTION

    PATHFINDER|Exercise QUESTION BANK|28 Videos

  • SURFACE CHEMISTRY

    PATHFINDER|Exercise QUESTION BANK|41 Videos

Similar Questions

Explore conceptually related problems

What is the vapour pressure of pure water at 100^(@)C temperature ?

6.0 g of urea (molecular weight=60) was dissolved in 9.9 moles of water. If the vapour pressure of pure water is P^@ , the vapour pressure of solution is :

The degree of dissociation of Ca(NO_3)_2 in a dilute aqueous solution, containing 7.0g of salt per 100 g of water at 100° C is 70%. It the vapour pressure of water at 100°C is 760 mm Hg, calculate the vapour pressure of the solution.

The degree of dissociation of Ca(NO_3)_2 in a dilute aqueous solution, containing 7.0g of salt per 100 g of water at 100° C is 70%. It the vapour pressure of water at 100°C is 760 mm Hg, calculate the vapour pressure of the solution.

Find the molecular weight of a solute when 1.2 gm of the solute is dissolved in water at 25^@C in 37.4 mm of Hg.

Vapour pressure of pure water at 298 K is 23.8 mm Hg. 50 g of urea (NH_2CONH_2) is dissolved in 850 g of water. Calculate the vapour pressure of water for the solution and its relative lowering.

Why is the vapour pressure of an aqueous solution of glucose lower that that of water?

The vapour pressure of acetone at 20^@C is 185 torr. When 1.2 g of a non-volatile solute was dissolved in 100 g of acetone at 20^@C its vapour pressure was 183 torr. The mass (g mol^(-1)) of the substance is.

Calculate the volume of dry air at STP that occupies 28 cc at 14^(@) and 750 mm of Hg pressure when saturated with water vapour. The vapour pressure of water at 14^(@) is 12mm of Hg.

The vapour pressure of an aqueous solution of sucrose at 373 K is found to be 750 mm Hg. The molality of the solution at the same temperature will be :

PATHFINDER-SOLUTIONS-QUESTION BANK
  1. Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at ...

    Text Solution

    |

  2. A solution has higher osmotic pressure than its standard solution. Whi...

    Text Solution

    |

  3. The vapour pressure lowering caused by the addition of 100 g of sucros...

    Text Solution

    |

  4. Molarity of a given orthophosphoric acid solution is 3 M. Its normalit...

    Text Solution

    |

  5. 138 g of ethyl alcohol is mixed with 72 g of water. The ratio of mole ...

    Text Solution

    |

  6. In which case Raoult's low is not applicable ?

    Text Solution

    |

  7. The freezing point of one molal NaCl solution assuming NaCI to be 100%...

    Text Solution

    |

  8. The vapour pressure of water depends upon

    Text Solution

    |

  9. A vessel has nitrogen gas and water vapour in equilibrium with liquid ...

    Text Solution

    |

  10. For a dilute solution, Raoult's law states that :

    Text Solution

    |

  11. The mathematical expression of Raoult's law is: Where n is no. of mo...

    Text Solution

    |

  12. Total vapour pressure of mixture of 1 mol of volatile component A (PA^...

    Text Solution

    |

  13. Two liquids A and B have vapour pressure in the ratio PA^@:PB^@=2:3 at...

    Text Solution

    |

  14. Which of the following azeotropic solutions has the b.p. less than b.p...

    Text Solution

    |

  15. The mass of glucose that should be dissolved in 100 g of water in orde...

    Text Solution

    |

  16. The vapour pressure of water at room temperature is lowered by 5% by d...

    Text Solution

    |

  17. The vapour pressure of a dilute aqueous of glucose is 750 mm of mercur...

    Text Solution

    |

  18. Relative decrease in vapour pressure of an aqueous solution containing...

    Text Solution

    |

  19. A solution of one mole of benzoic acid in 15 moles of benzene produces...

    Text Solution

    |

  20. When mercuric iodide is added to the aqueous solution of potassium iod...

    Text Solution

    |