Home
Class 11
CHEMISTRY
Define molecular mass of a substance....

Define molecular mass of a substance.

Text Solution

Verified by Experts

Molecular mass of a substance (element or compound) represents the number of times the molecule of that substance is heavier than 1/`12^(th)` of the mass of an atom of C-12 isotope. Molecular mass = 2 `xx` Vapour density
Promotional Banner

Topper's Solved these Questions

  • BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS

    FULL MARKS|Exercise Additional Questions Solved(3-Mark Questions)|27 Videos

  • BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS

    FULL MARKS|Exercise Additional Questions Solved(5-Mark Questions)|29 Videos

  • BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS

    FULL MARKS|Exercise Additional Questions Solved(Choose the incorrect statement)|3 Videos

  • ALKALI AND ALKALINE EARTH METALS

    FULL MARKS|Exercise Additional Questions Solved|224 Videos

  • BASIC CONCEPTS OF ORGANIC REACTIONS

    FULL MARKS|Exercise Additional Questions Solved (5-Marks Question)|10 Videos

Similar Questions

Explore conceptually related problems

Define the term osmotic pressure. Describe how the molecular mass of a substance can be determined by a method based on measurement of osmotic pressure ?

Define molecular cloning .

Define mass

Define molecular biology.

State true or false. If false, give the correct statement. Density is defined as the mass of the substance contained in unit volume.

State whether the following statements are true or false. a) Density is defined as the mass of the substance contained in unit volume.

FULL MARKS-BASIC CONCEPTS OF CHEMISTRY AND CHEMICAL CALCULATIONS -Additional Questions Solved(2-Mark Questions)
  1. Distinguish between a molecule and a compound.

    Text Solution

    |

  2. Chlorine has fractional average atomic mass. Justify this statement.

    Text Solution

    |

  3. Define molecular mass of a substance.

    Text Solution

    |

  4. Relative molarcular mass of sulphuric acid is .

    Text Solution

    |

  5. Define the avogadro's number :

    Text Solution

    |

  6. The number of moles of ethane in 60 g is

    Text Solution

    |

  7. Calculate the equivalent mass of Copper. (Atomic mass of copper = 63.5...

    Text Solution

    |

  8. Calculate the equivalent mass of (i) Sulphate ion (ii) Phosphate ion.

    Text Solution

    |

  9. Calculate the equivalent mass of H(2) SO(4) .

    Text Solution

    |

  10. How many moles of hydrogen is required to produce 20 moles of ammonia?

    Text Solution

    |

  11. Calculate the amount of water produced by the combustion of 32 g of me...

    Text Solution

    |

  12. How much volume of Carbon dioxide is produced when 25 g of calcium car...

    Text Solution

    |

  13. How much volume of chlorine is required to prepare 89.6 L of HCI gas a...

    Text Solution

    |

  14. Define limiting reagent .

    Text Solution

    |

  15. On the formation of SF(6) by the direct combination of S and F(2) whi...

    Text Solution

    |

  16. Mention any 4 redox reaction that takes place in our daily life.

    Text Solution

    |

  17. Calculate the oxidation number of underlined elements in the following...

    Text Solution

    |

  18. If ten volumes of dihydrogen gases react with five volumes of dioxygen...

    Text Solution

    |

  19. Which one of the following will have largest number of atoms? (i)...

    Text Solution

    |

  20. What will be the mass of one ""^(12)C atom in g?

    Text Solution

    |