Home
Class 12
CHEMISTRY
A solution containing 6.35g of a non ele...

A solution containing 6.35g of a non electrolyte dissolved in 500 g of wate freezes at `-0.465^(@)"C".` Determine the molecular weight of the solute. `["K"_("f")"for water 1.86"^@)"C"//"m"]`

Text Solution

Verified by Experts

The correct Answer is:
`"50.8 g/mol"`
Solute-B, Water-A
`Delta"T"_("f")=("K"_("f")xx"w"_("B")xx1000)/("m"_("B")xx"w"_("A"))`
`0.465=(1.86xx6.35xx100)/("m"_("B")xx500)`
`"m"_("B")=50.8"gm mole"`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A solution containing 3.24 g of a nonvolatile nonelectrolyte and 200 g of water boils at 100. 130^(@)"C" at 1atm. What is the molecular weight of the solute? ("K"_("b") "for water 0.513"^(@)"C"//"m")

A solution containing 18 g of a non - electrolytic solute in 200g of H_(2)O freezes at 272.07 K . Find the molecular mass of the solute . ( K_(f) = 1.86 Km^(-1) ).

A solution containing 10 g of a non- voltile, higher nonelectrolyte and 400 g of water boils at 100.256^(@)C at 1 atm. The molecular weight of the solute (in g/mol) is Given : (K_(b)" for water "0.512^(@)C//m)

A solution containing 6.8 g of non-ionic solute in 100g of water was found to freeze at -0.93^(@)C . If K_(f) for water is 1.86, the mol. Mass of solute is

BANSAL-SOLUTIONS-Exercise3
  1. An aqueous solution of a non-volatile solute boils at 100.17^(@)C. At ...

    Text Solution

    |

  2. Pure benzene freeze at 5.45^(@)"C". A solution containing 7.24g of "C...

    Text Solution

    |

  3. A solution containing 6.35g of a non electrolyte dissolved in 500 g of...

    Text Solution

    |

  4. The freezing point of a solution containing 2.40 g of a compound in 60...

    Text Solution

    |

  5. A solution of 0.643 g of an organic compound in 50 mL of benzene (den...

    Text Solution

    |

  6. The cryoscopic constant for acetic acid is 3.6 K kg/mol. A solution of...

    Text Solution

    |

  7. Find the freezing point of a glucose solution whose osmotic pressure a...

    Text Solution

    |

  8. At 300K, two solutions of glucose in water of concentration 0.01M and ...

    Text Solution

    |

  9. At 10^(@)C, the osmotic pressure of urea solution is 500 mm.The soluti...

    Text Solution

    |

  10. The osmotic pressure of blood is 7.65 atm at 37^(@)"C". How much gluco...

    Text Solution

    |

  11. Calculate the osmotic pressure at 17^(@)C of an aqueous solution conta...

    Text Solution

    |

  12. A solution of crab hemocyanin, a pigmented protein extracted from crab...

    Text Solution

    |

  13. The osmotic pressure of a solution of a synthetic polyisobutylene in b...

    Text Solution

    |

  14. 10 g of solute A and 20gm of solute B are both dissolved in 500ml wate...

    Text Solution

    |

  15. A storage battery contains a solution of H(2)SO(4) 38% by weight. What...

    Text Solution

    |

  16. A certain mass of a substance when dissolved in 100 g C(6)H(6) lowers ...

    Text Solution

    |

  17. Two grams of benzoic acid (C(6)H(5)COOH) dissolved in 25.0 g of benzen...

    Text Solution

    |

  18. The freezing point of solution containing 0.2 g of acetic acid in 20.0...

    Text Solution

    |

  19. 0.85% aqueous solution of NaNO(3) is apparently 90% dissociated at 27^...

    Text Solution

    |

  20. An aqueous solution containing 288 gm of a non-volatile compound havin...

    Text Solution

    |