Home
Class 11
CHEMISTRY
The density of 3M solution of NaCl is 1....

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

A

`2.79 m`

B

`1.79 m`

C

`3.5m`

D

`5.58m`

Text Solution

Verified by Experts

The correct Answer is:
A
`m = (M xx 1000)/((1000 xx d)-(M xx G.MW))`
`N_(1)V_(1) = N_(2)V_(2)`
strength `=N xx EW`
`MW = EW xx` Basicity
`m = (M xx 1000)/(1000 xx d - M xx GMW)`
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    NARAYNA|Exercise LEVEL-V|122 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    NARAYNA|Exercise EXERCISE - IV|43 Videos

Similar Questions

Explore conceptually related problems

The density of 3 M solution of NaCl is 1.25 "g L"^(-1) . The molality of the solution is :

The density of 1 M solution of NaCl is 1.0585 g mL^(-1) . The molality of the solution is

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

The density of 2M aqueous solution of NaOH is 1.28g//cm^(3) . The molality of the solution is [Given that molecular mass of NaOH=40gmol^(-1) ]

In a solution of ethanol in water, the mole fraction of ethanol is 0.05 and the density of solution is 1.94 g mL^(-1) . The molarity of the solution is ___ M

The density of 3 molal solution of NaOH is 1.110g mL^(-1) . Calculate the molarity of the solution.

NARAYNA-SOME BASIC CONCEPTS IN CHEMISTRY STOICHIOMETRY (PART-I)-All Questions
  1. 40 mg of pure sodium hydroxide is dissolved in 10 L of distilled water...

    Text Solution

    |

  2. 100 ml of 0.3 M HCl is mixed with 200 ml of 0.3 M H(2)SO(4). Calculate...

    Text Solution

    |

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

    Text Solution

    |

  4. The oxidation state of iron in the coordination sphere of prussain blu...

    Text Solution

    |

  5. Oxidation number of carbon in SCN ion is

    Text Solution

    |

  6. In ICl(3) oxidation numbers of iodine and chlorine are

    Text Solution

    |

  7. Lead Nitrate is strongly heated. In this reaction the oxidation number...

    Text Solution

    |

  8. The sum of the oxidation number of the carbon atoms in CH(3)CHO is

    Text Solution

    |

  9. In the reaction between ethylene and alkaline KMnO(4) the oxidation nu...

    Text Solution

    |

  10. One gas bleaches the colour of flowers by reduction and other by oxida...

    Text Solution

    |

  11. (A) The reaction of oxalic acid with acidified KMnO(4) is first slow ...

    Text Solution

    |

  12. Which of the following has//have been arranged in order of decreasing...

    Text Solution

    |

  13. 3HOCl rarr 2HCl +HClO(3) is an example of

    Text Solution

    |

  14. The oxidation state of the most electronegative atom in each of the pr...

    Text Solution

    |

  15. Which of the following reactions involves neither oxidation nor reduct...

    Text Solution

    |

  16. In the chemical reaction, K(2)Cr(2)O(7)+xH(2)SO(4)+ySO(2)rarrK(2)SO(...

    Text Solution

    |

  17. The reaction 5H(2)O(2)+XClO(2)+2OH^(-) rarr XCl^(-)+YO(2)+6H(2)O i...

    Text Solution

    |

  18. In the balanced chemical reaction IO(3)^(ө)+al^(ө)+bH^(ө)rarrcH(2)O+...

    Text Solution

    |

  19. A gaseous mixture contains oxygen and nitrogen in the ratio of 1 : 4 b...

    Text Solution

    |

  20. Versene, a chelating agent having chemical formula C(2)H(4)N(2)(C(2)H...

    Text Solution

    |