Home
Class 9
CHEMISTRY
Determine the mass of the following : ...

Determine the mass of the following :
(i) `0.7` mole of `O_(2)` gas (ii) `0.7` mol of `O` atoms .

Text Solution

Verified by Experts

(i) Molecular mass of `O_(2) ` gas = 32
`therefore ` mass = mole `xx` molecular mass = `0.7 xx 32 = 22.4` g
(ii) Atomic mass of O atom = 16
`therefore` mass = mole `xx` atomic mass = `0.7 xx 16 = 11.2` g .
Promotional Banner

Topper's Solved these Questions

  • ATOMS , MOLECULES AND IONS

    BHARATI BHAWAN (ENGLISH)|Exercise Pick the correct option|10 Videos

  • ATOMS , MOLECULES AND IONS

    BHARATI BHAWAN (ENGLISH)|Exercise Fill in the blanks|7 Videos

  • ATOMIC STRUCTURE

    BHARATI BHAWAN (ENGLISH)|Exercise D. Long Answer Questions|12 Videos

  • ATOMS, MOLECULES AND IONS

    BHARATI BHAWAN (ENGLISH)|Exercise E. Numericals|6 Videos

Similar Questions

Explore conceptually related problems

Calculate the mass of the following: (i) 0.5moles of O_(2) gas (ii) 0.5moles of O atoms (iii) 3.011xx10^(23)"atoms of O" (iv) 6.022xx10^(23)"molecules of "O_(2) (Givem: Gram atomic mass of oxygen=16g) Gram of molecular mass of oxygen (O_(2)) =32g)

Calculate the mass of the following: (i) 0.5 mole of N_(2) gas (mass from mole of molecule) (ii) 0.5 mole of N atoms (mass from mole of atom) (iii) 3.011 × 10_(23) number of N atoms (mass from number) (iv) 6.022 × 10_(23) number of N_(2) molecules (mass from number)

Determine the mass of the following : (i) 6.022 xx 10^(23) number of O_(2) molecules (ii) 6.022 xx 10^(23) number of O atoms .

Draw the structures of the following : (i) H_(4)P_(2)O_(7) (ii) XeOF_(4)

Calculate the number of moles in the following masses : (i) 7.85g of Fe, (ii) 7.9mg of Ca

Calculate number of atoms in each of the following: I. 0.5 mol of nitrogen II. 0.2 mole molecules of hydrogen III. 32 g of sulphur

Draw the structures of the following molecules : (i) XeF_(6) (ii) H_(2)S_(2)O_(7)

Drawn the structure of the following (i) H_(2)S_(2)O_(7) (ii) XeF_(6)

BHARATI BHAWAN (ENGLISH)-ATOMS , MOLECULES AND IONS -Numericals
  1. Determine the mass of the following : (i) 0.7 mole of O(2) gas (ii) ...

    Text Solution

    |

  2. How many moles are there in 5 g of calcium ?

    Text Solution

    |

  3. Calculate the number of moles in the following : (i) 128 g of oxygen...

    Text Solution

    |

  4. What is the number of molecules present in 0.5 mole of hydrogen ?

    Text Solution

    |

  5. What is the mass in grams of 3 moles of N ?

    Text Solution

    |

  6. Calculate the mass of 12.0 xx 10^(14) atoms of hydrogen .

    Text Solution

    |

  7. Calculate the percentage composition of (i) iron in ferric oxide , F...

    Text Solution

    |

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

    Text Solution

    |

  9. How many grams of sodium wil have the same number of atoms as 6 grams ...

    Text Solution

    |

  10. Calculate the mass in grams of 0.2 mole of water (H(2)O) . ( H = 1 , O...

    Text Solution

    |

  11. How many moles of calcium carbonate (CaCO(3)) are present in 10 g o...

    Text Solution

    |

  12. Calculate the number of atoms of each element present in 9.8 g of sulp...

    Text Solution

    |

  13. Calculate the number of calcium ions in 5.6 g of calcium oxide . (Ca =...

    Text Solution

    |

  14. What is the percentage composition of the elements in ammonia , NH(3) ...

    Text Solution

    |

  15. 2.0 of a sample of sodium chloride contains 0.785 g of sodium and 1.77...

    Text Solution

    |

  16. In aqueous solution magnesium chloride dissociates into ions as follow...

    Text Solution

    |

  17. Calculate the mass of water required to produce 36 g of glucose during...

    Text Solution

    |