Home
Class 9
CHEMISTRY
Calculate the no. of atoms of He in 56 a...

Calculate the no. of atoms of He in 56 amu of He simple.

Text Solution

Verified by Experts

No. of atom ` = (56 a m u)/(4 a m u) = 14`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL ARITHMETIC

    CENGAGE CHEMISTRY|Exercise MANDATORY EXERCISE (EXERCISE SET III) (OLYMPIAD AND NTSE LEVEL EXCERCISES)|10 Videos
  • CHEMICAL ARITHMETIC

    CENGAGE CHEMISTRY|Exercise MANDATORY EXERCISE (EXERCISE SET II) |31 Videos
  • ATOMIC STRUCTURE

    CENGAGE CHEMISTRY|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES|10 Videos
  • CHEMICAL BONDING

    CENGAGE CHEMISTRY|Exercise OLYMPIAD AND NTSE LEVEL EXERCISES|9 Videos

Similar Questions

Explore conceptually related problems

Number of atoms of He in 100 amu of He is :

Calculate the number of atoms in each of the following a. 52 mol of He b. 52 u of He c. 52 g of He

Calculate the number of atoms in each of the following (i) 52 moles of Ar (ii) 52 u of He (iii) 52 g of He.

Calculate Number of nitrogen atoms in 160 amu of NH_(4)NO_(3)

CENGAGE CHEMISTRY-CHEMICAL ARITHMETIC -MANDATORY EXERCISE (EXERCISE SET III)
  1. What is the relation between atomic mass and number of nucleon ?

    Text Solution

    |

  2. Write the atomic mass, atomic weight and relative atomic mass of calci...

    Text Solution

    |

  3. Calculate the no. of atoms of He in 56 amu of He simple.

    Text Solution

    |

  4. What is meant by 1 g atom of Na ?

    Text Solution

    |

  5. Express the relation between atomic mass and gram atomic weight ?

    Text Solution

    |

  6. Calculate the % mass of C in H(2) C (2) O(4) 2H(2)O

    Text Solution

    |

  7. Calculate of % mass of H(2) O in Mg SO(4) .7H(2)O sample.

    Text Solution

    |

  8. Calcualte the weight of H(2)O present in 100 g sample of Mg SO(4). 7H(...

    Text Solution

    |

  9. If two compounds have same Empirical form then mass percentage of both...

    Text Solution

    |

  10. If mass % of N in an organic compound is 7% then minimum molar mass of...

    Text Solution

    |

  11. Calculate the mass % of NH(4) ^(o+) in (NH(4)) (2) Cr (2) O(7) (ammoni...

    Text Solution

    |

  12. Calculate the mass % of C in first member of alkane and alkene homolog...

    Text Solution

    |

  13. Calculate the mass % of C in carbon suboxide.

    Text Solution

    |

  14. Calculate the percentage of carbonate ion in Na (2) CO(3) and Na HCO(3...

    Text Solution

    |

  15. Calculate the mass % of SO (4) ^(2-) in potash Alum K(2) SO(4)^(2) Al ...

    Text Solution

    |

  16. The formula of a metal chloride is MCl (3) and atomic weight of metal ...

    Text Solution

    |

  17. Among NH(3), HNO(3), Na N(3) and Mg (3) N(2) the numbers of molecules ...

    Text Solution

    |

  18. The oxidation number of oxygen in KO(3) and Na (2)O(2) is

    Text Solution

    |

  19. Oxidation state of Br in Br (2) and BrO(3) ^(-) is

    Text Solution

    |

  20. The difference of oxidation state of two s atoms in H(2) S(2) O(8) is

    Text Solution

    |