Home
Class 9
CHEMISTRY
The mass of one atom of an element X is...

The mass of one atom of an element `X` is `2.0 xx 10^(-23) g`.
(i) Calculate the atomic mass of element X.
(ii) What could element X be ?

Text Solution

Verified by Experts

The correct Answer is:
A, B, C
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    LAKHMIR SINGH & MANJIT KAUR|Exercise Exercise|205 Videos
  • IS MATTER AROUND US PURE

    LAKHMIR SINGH & MANJIT KAUR|Exercise NCERT BOOK PAGE 24|1 Videos

Similar Questions

Explore conceptually related problems

Atomic mass of an element is

The mass of one atom of an element is 1.71 xx 10^(-22) g. What is the atomic mass of this element in g-mol^(-1) ?

Mass of one atom of an element is 2.66xx10^(-23)g . This mass is equal to

One atom of nickel weighs 9.75 xx 10^(-23) g. Calculate the atomic mass of nickel

The mass of 3.2 xx 10^(5) atoms of an element is 8.0 xx 10^(-18) gm. The atomic mass of the element is about:

LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
  1. If one grams of sulphur contains x atoms, calculate the number of ato...

    Text Solution

    |

  2. How many grams of magnesium will have the same number of atoms as 6 ...

    Text Solution

    |

  3. The mass of one atom of an element X is 2.0 xx 10^(-23) g. (i) Calc...

    Text Solution

    |

  4. In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic ac...

    Text Solution

    |

  5. Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water....

    Text Solution

    |

  6. Which postulate of Dalton’s atomic theory is the result of the law of ...

    Text Solution

    |

  7. Which postulate of Dalton’s atomic theory can explain the law of defin...

    Text Solution

    |

  8. Define the atomic mass unit.

    Text Solution

    |

  9. Why is it not possible to see an atom with naked eyes?

    Text Solution

    |

  10. Write down the formulae of (i) sodium oxide (ii) aluminium chlor...

    Text Solution

    |

  11. Write down the names of compounds represented by the following formula...

    Text Solution

    |

  12. What is meant by the term chemical formula?

    Text Solution

    |

  13. How many atoms are present in a (i) H(2)S molecule and (ii) PO...

    Text Solution

    |

  14. Calculate the molecular masses of H(2), O(2), Cl(2), CO(2), CH(4), C(2...

    Text Solution

    |

  15. Calculate the formula unit masses of ZnO, Na(2)O, K(2)CO(3), given ato...

    Text Solution

    |

  16. If one mole of carbon atoms weighs 12 grams, what is the mass (in gram...

    Text Solution

    |

  17. Which has more number of atoms, 100 grams of sodium or 100 grams of ir...

    Text Solution

    |

  18. A 0.24 g sample of compound of oxygen and boron was found by analysis ...

    Text Solution

    |

  19. When 3.0 g of carbon is burnt in 8.0 g oxygen, 11.0 g of carbon dioxid...

    Text Solution

    |

  20. What are polyatomic ions? Give examples.

    Text Solution

    |