Home
Class 12
CHEMISTRY
Calculate the molar concentration of ure...

Calculate the molar concentration of urea solution if it exerts an osmotic pressure of 2.45 atmosphere at 300K . (R=0.0821L atm `mol^-1 K^-1`)

Text Solution

Verified by Experts

`pi=2.45" atm"`
C = ?
We know `pi=iCRTrArrC=pi/(RT)`
`rArrC=2.45/(0.082xx300)=2.45/(24.6)=0.0995"mol L"^(-1)`
`C=0.10" mol L"^(-1)`.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    OMEGA PUBLICATION|Exercise Multiple Choice Questions|56 Videos
  • SAMPLE QUESTION PAPER

    OMEGA PUBLICATION|Exercise QUESTION|116 Videos
  • SURFACE CHEMISTRY

    OMEGA PUBLICATION|Exercise MULTIPLE CHOICE QUESTIONS|78 Videos

Similar Questions

Explore conceptually related problems

The osmotic pressure of 0.2 molar solution of urea at 27^@C (R=0.082 litre atm "mol"^(-1) K^(-1)) is

Calculate the freezing point of an aqueous solution of a non electrolyte having an osmotic pressure at 2 atm at 300K (K_f=1.86Cm^-1, R=0.082 L atm K^-1 mol^-1)

The temperature at which 10% aqueous solution of glucose will exhibit the osmotic pressure of 16.4 atm is ( R=0.082 "dm"^3 atm/K/mol)

3.0 g of non-volatile solute when dissolve in 1 litre water, shows an osmotic pressure of 2 atmosphere at 300 K. Calculate the molar mass of the solute. (R = 0.0821 litre atm K^(-1)"mol"^(-1) ).

Decinormal solution of NaCl developed an osmotic pressure of 4.6 atm at 300K. Calculate the degree of dissociations.

The temperature at which 10 % aqueous solution of (W/V) of glucose will show the osmotic pressure of 16.4 atom is (R=0.082 "L atom K"^(-1) "mol"^(-1))

For a molar solution of NaCl in water at 25^(@)C and 1 atm pressure shows that:

Calculate the osmotic pressure at 273K of a 5% solution of compound A. (molecular mass-60) (Given R= 0.0821 L atm K^-1mol^-1 )

Calculate the osmotic pressure of a solution obtained by mixing 100 mL of 1.5 percent solution of urea (mol.mass of 60) and 100 mL of 3.42 percent solution of cane sugar (mol. Mass=342) at 20^@C . (R=0.82 litre atm K^-1 mol^-1)

OMEGA PUBLICATION-SOLUTIONS-Multiple Choice Questions
  1. Calculate the molar concentration of urea solution if it exerts an osm...

    Text Solution

    |

  2. Calculate the number of electron, proton and neutron in phosphate ion ...

    Text Solution

    |

  3. Calculate the number of electron, proton and neutron in sulphate ion .

    Text Solution

    |

  4. Calculate the number of electron, proton and neutron in carbonate ion ...

    Text Solution

    |

  5. Units of molarity of

    Text Solution

    |

  6. For a molar solution of NaCl in water at 25^(@)C and 1 atm pressure sh...

    Text Solution

    |

  7. Partial pressure of a solution component is directly proportional to i...

    Text Solution

    |

  8. In a mixture, A and B compounds show negative deviation as

    Text Solution

    |

  9. Which of the following liquid pair shows positive deviation from Raoul...

    Text Solution

    |

  10. If liquid A and B form an ideal solution

    Text Solution

    |

  11. Which of the following is not correct for ideal solution?

    Text Solution

    |

  12. Very dilute solutions which show deviations (positive or negative) fro...

    Text Solution

    |

  13. Colligative properties of solutions are those which depend upon

    Text Solution

    |

  14. Which of the following is a colligative property?

    Text Solution

    |

  15. Which of the following is not a colligative property?t

    Text Solution

    |

  16. The temperature at which the vapour pressure of a liquid becomes equal...

    Text Solution

    |

  17. The molecular mass of a solute cannot be calculated by one of the foll...

    Text Solution

    |

  18. Which of the following is correctly matched ?

    Text Solution

    |

  19. If the elevation in boiling point of a solution of 10 gm of solute (mo...

    Text Solution

    |

  20. Molal depression constant is calculated from the enthalpy of fusion (D...

    Text Solution

    |

  21. The depression in freezing point is directly proportional to

    Text Solution

    |