Home
Class 12
CHEMISTRY
The number of moles of oxygen in 1 L of ...

The number of moles of oxygen in 1 L of air containing `21%` oxygen by volume , under standard conditions , is

A

0.0093 mole

B

2.10 moles

C

0.186 mole

D

0.21 mole

Text Solution

Verified by Experts

The correct Answer is:
A
Volume of oxygen in 1 L of air
`=(21)/(100)xx1000`
`=210 " mL"`
`:'`22400 mLvolume at STP is occupied by oxygen =1 mole
Therefore , number of moles occupied by 210 mL
`=(210)/(22400)`
`=0.0093 " mol"`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise Exercise|56 Videos

  • STATES OF MATTER

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise All Questions|77 Videos

Similar Questions

Explore conceptually related problems

The number of moles of oxygen in 1 L of air containing 21% oxygen by volume, in standard conditions, is

The number of mole of nitrogen in one litre of air containing 10% nitrogen by volume, under standard conditions, is

The number of moles of carbon dioxide which contain 8 g of oxygen is

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-SOME BASIC PRINCIPLES OF CHEMISTRY-Exercise
  1. The number of atoms in 4.25 g NH(3) is approximately:

    Text Solution

    |

  2. In the reaction, 4NH(3)(g)+5O(2)(g) rarr 4NO(g)+6H(2)O(g), when 1 mole...

    Text Solution

    |

  3. Haemoglobin contains 0.33% of iron by weight. The molecular weight of ...

    Text Solution

    |

  4. Given the number: 161 cm, 0.161 cm, 0.0161 cm. The number of significa...

    Text Solution

    |

  5. If 0.24 g of a volatile liquid upon vaporization gives 45 ml of vapors...

    Text Solution

    |

  6. Liquid benzene C(6)H(6)) burns in oxygen according to the equation, 2...

    Text Solution

    |

  7. The number of moles of oxygen in 1 L of air containing 21% oxygen by v...

    Text Solution

    |

  8. The percentage weight of Zn in white vitriol [ZnSO(4)*7H(2)O] is appro...

    Text Solution

    |

  9. If N(A) is Avogadro's number then number of valence electrons in 4.2 g...

    Text Solution

    |

  10. In the final answer of the expression ((29.2-20.2)(1.79xx10^(5)))/1.37...

    Text Solution

    |

  11. The number of gram molecules of oxygen in 6.02 xx 10^(24) CO molecules...

    Text Solution

    |

  12. The number of oxygen atoms in 4.4 of CO(2) is

    Text Solution

    |

  13. Boron has two stable isotopes, .^(10)B(19%) and .^(11)B(81%). The atom...

    Text Solution

    |

  14. If 1L of O(2) at 15^(@)C and 750 mm pressure contains N molecules, the...

    Text Solution

    |

  15. Ratio of C(p) and C(v) of a gas X is 1.4, the number of atom of the ga...

    Text Solution

    |

  16. A metal oxide has the formula Z(2)O(3) . It can be reduced by hydrogen...

    Text Solution

    |

  17. What is the weight of oxygen required for the complete combustion of 2...

    Text Solution

    |

  18. One litre hard water contains 12.00 mg Mg^(2+) millieqivalent of washi...

    Text Solution

    |

  19. I cc N(2)O at NTP contains

    Text Solution

    |

  20. At STP , the density of C Cl(4) vapour in g/L will be nearest to

    Text Solution

    |