Home
Class 11
CHEMISTRY
Define Atomic weight....

Define Atomic weight.

Text Solution

Verified by Experts

The atomic weight of an element is the ratio of the average mass of an atom of that element to `1/12` of mass of an atom of C-12 Isotope.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    SUBHASH PUBLICATION|Exercise TWO MARKS QUESTIONS AND ANSWERS|38 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTION WITH ANSWERS|18 Videos

  • S-Block Elements

    SUBHASH PUBLICATION|Exercise Three marks questions and answers|8 Videos

  • STATES OF MATTER : GASES AND LIQUIDS

    SUBHASH PUBLICATION|Exercise NUMERICAL PROBLEMS AND ANSWERS|25 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of He atoms in (i) 52 u, (ii) 52 g, (iii) 52 moles of He. Atomic weight of He is 4u.

The cause of the fractional atomic weight of elements is

Calculate mass of sodium which contains same number of atoms as are present in 4 g of calcium (Atomic weight Na = 23 , atomic weight Ca = 40 )

What weight of Ni is plated out in an electrolysis of aqueous NiSO_(4) solution that it takes place to deposit 2G OF Ag in a silver coulometer that is arranged in series with NiSO_(4) electrolytic cell. [ Atomic weight of Ag=107.8 am u , atomic weight of Ni=58.7 am u]

Calculate the formula weight of each of the following to three significant figures, using a table of atomic weight (AW): (a) chloroform CHCl_3 (b) Iron (III) sulfate , Fe_2(SO_4)_3 .

In the following change, 3 Fe + 4H_(2)O = Fe_(2)O_(4) + 4H_(2) If the atomic weight of iron is 56, then is equivalent weight will be

A metal M of atomic weight 54.9 has a density of 7.42 g cm^(-3) . Calculate the volume occupied and the radius of the atom of this metal assuming it to be sphere.

SUBHASH PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -NUMERICAL PROBLEMS AND ANSWERS:
  1. Define Atomic weight.

    Text Solution

    |

  2. How many significant figures are there in each of the following number...

    Text Solution

    |

  3. Express the following to four significant figures: (i) 6.45372, (ii) 4...

    Text Solution

    |

  4. 10.0 g of CaCO(3) on heating game 4.4g of CO(2) and 5.6 g of CaO. Show...

    Text Solution

    |

  5. Express the result of the following calculation to the appropriate num...

    Text Solution

    |

  6. The mass of precious stones is at present in terms of carat Given that...

    Text Solution

    |

  7. The graphite present in a pencil weighs is 140 mg. Calculate the numbe...

    Text Solution

    |

  8. Calculate the percentage of the naturally occuring isotopes ""^(35)Cl ...

    Text Solution

    |

  9. Convert 22.4 L into cubic metres.

    Text Solution

    |

  10. Calculate the molar mass of water if it contains 50% heavy water (D(2)...

    Text Solution

    |

  11. 60 cc of oxygen was added to 24 cc of carbon monoxide and the mixture ...

    Text Solution

    |

  12. 200 cm^(3) of carbon monoxide is mixed with 200 cm^(3) of oxygen at ro...

    Text Solution

    |

  13. Calculate the volume of oxygen required to burn completely a mixture o...

    Text Solution

    |

  14. Calculate the mass of 50 cc of CO at STP (C=12, O=16)

    Text Solution

    |

  15. Calculate the volumes at STP occupied by 6.023 xx 10^(23) molecules of...

    Text Solution

    |

  16. Calculate the number of molecules in 1 kg of sodium chloride. [Na =23,...

    Text Solution

    |

  17. Calculate the value of 1 a.m.u. in grams.

    Text Solution

    |

  18. 0.48 g of a gas forms 100 cm^(3) of vapours at STP. Calculate the gram...

    Text Solution

    |

  19. Calculate the number of moles in the following mass (a) 7.85 g Fe (ato...

    Text Solution

    |

  20. Calculate the normality of oxalic acid solutions containing 0.895 g cr...

    Text Solution

    |

  21. 25 cm^(3) of ferrous ammonium sulphate solution require 20 cm^(3) of 0...

    Text Solution

    |