Home
Class 12
CHEMISTRY
When 6 gm urea dissolve in 180 gm H(2)O....

When `6` gm urea dissolve in `180` gm `H_(2)O`. The mole fraction of urea is [Mol. Wt. of urea = `60`]

A

`(10)/(10.1)`

B

`(10.1)/(10)`

C

`(10.1)/(0.1)`

D

`(0.1)/(10.1)`

Text Solution

Verified by Experts

The correct Answer is:
D
Mole fraction `X=(n)/(n+N)=((6)/(60))/((6)/(60)+(180)/(18))=(0.1)/(10.1)`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (COLLIGATIVE PROPERTIES)|8 Videos

  • SOLUTIONS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (LOWERING OF VAPOUR PRESSURE)|36 Videos

  • SOLUTIONS

    ERRORLESS|Exercise ASSERTION AND REASON|16 Videos

  • SOLID STATE

    ERRORLESS|Exercise ASSERTION & REASON|11 Videos

  • SURFACE CHEMISTRY

    ERRORLESS|Exercise ASSERTION AND REASON|14 Videos

Similar Questions

Explore conceptually related problems

The mole fraction of urea in its 2 molal aqueous

6g .of Urea is dissolved in 90g .of water.The mole fraction of solute is

In a mixture of 1 gm H_(2) and 8 gm O_(2) , the mole fraction of hydrogen is

0.1 gram mole of urea dissolved in 100 g of water. The molality of the solution is

What is the mole fraction of urea in a 4.45 m aqueous solution?

ERRORLESS-SOLUTIONS -NCERT BASED QUESTIONS (METHODS OF EXPRESSING CONCENTRATION OF SOLUTION)
  1. The mole fraction of water in 20% (wt.//wt.) aqueous solution of H(2)O...

    Text Solution

    |

  2. 1000 gram aqueous solution of CaCO(3) contains 10 gram of carbonate. C...

    Text Solution

    |

  3. When 6 gm urea dissolve in 180 gm H(2)O. The mole fraction of urea is ...

    Text Solution

    |

  4. A molal solution is one that contains one mole of a solute in

    Text Solution

    |

  5. The mole fraction of the solute in one molal aqueous solution is:

    Text Solution

    |

  6. An X molal solution of a compound in benzene has mol e fraction of sol...

    Text Solution

    |

  7. The degree of hardness of water is usually expressed in terms of

    Text Solution

    |

  8. What will be the molality of solution having 18 g of glucose ...

    Text Solution

    |

  9. The molarity of 90% H(2)SO(4) solution is [density = 1.8 gm/ml]

    Text Solution

    |

  10. Molarity of H(2)SO(4) is 18 M. Its density is 1.8 g//cm^(3),hence mola...

    Text Solution

    |

  11. Calculate the molality of 1 litre solution of 93% H(2)SO(4) ("weight"/...

    Text Solution

    |

  12. The molality of pure water is

    Text Solution

    |

  13. A 3.5 molal aqueous solution of methyl alchol (CH(3)OH) is supplied. W...

    Text Solution

    |

  14. What will be the value of molality for an aqueous solution of 10% w/W ...

    Text Solution

    |

  15. Calculate the molality of a solution that contains 51.2g of naphthalen...

    Text Solution

    |

  16. 4 L of 0.02 M aqueous solution of NaCl was diluted by adding 1 L of wa...

    Text Solution

    |

  17. 25 g of a solute of molar mass 250 g mol^(-1) is dissolved in 100 ml o...

    Text Solution

    |

  18. Which of the following modes of expressing concentration is not indepe...

    Text Solution

    |

  19. A solution of Al(2)(So(4))(3){d=1.253 gm//ml} contain 22% salt by weig...

    Text Solution

    |

  20. The density of 3M solution of NaCl is 1.25 g mL^(-1). The molality of ...

    Text Solution

    |