Home
Class 11
CHEMISTRY
A sample of a pure compound contains 2.0...

A sample of a pure compound contains 2.04 g of Na, `2.65 xx 10^22` atoms of C and 0.132 mole of oxygen atoms. Find the empirical formula of the compound.

Text Solution

Verified by Experts

`Na_2CO_3`
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

    PATHFINDER|Exercise QUESTION BANK|77 Videos

  • MOLE AND STOICHIOMETRY-II

    PATHFINDER|Exercise QUESTION BANK|178 Videos

Similar Questions

Explore conceptually related problems

A given sample of pure compound contains 9.81 gm of Zn, 1.8 xx 10^23 atoms of chromium and 0.6 mole of oxygen atom. What is the simple molecular formula of the sample ? [Atomic mass of Zn = 65.38]

A compound of carbon, hydrogen and oxygen contains 40% of carbon and 6.67% of hydrogen. Vapour density of the compound is 2.813 times of the vapour density of oxygen. Determine the empirical formula and molecular formula of the compound.

A sample of vitamic C is known to contain 1.29 xx10^(24) hyrogen atom. How many moles of hydrogen atoms does the sample contain?

A compound contains K=42.39%, Fe=15.23% and C=19.44% N=22.8260 % . The molecular mass of the compound is 368. Find the molecular formula of the compound

An organic compound, consisting of carbon, hydrogen, nitrogen and oxygen contains 40.67% of carbon and 8.47% of hydrogen 0.5g of that compound gives 94.91mL of nitrogen at STP. What is the empirical formula of that compound?

0.2g of an organic compound contain 40.67% of carbon, 8.47% of hydrogen, 37.96 mL of nitrogen are obtained at S.T.P. from the same amount of the compound. Find out the empirical formula of the compound

An organic compound contains C, H and O. 0.2475 g of the organic compound yielded on combustion 0.4950 g of CO_(2) and 0.2025 g of H_(2)O . Find the percentage composition of the organic compound.

An organic compound consists of C, H and N. 0.5g of the compound, on combustion, forms 1.44g of CO_(2) and 0.3785g of water, find the molecular fomrula of the compound if its vapour density is 53.35.

An organic compound contains C, H and O as its constituents. On heating in absence of air, 3.10g of this compound, produces 1.24g of carbon. But if 0.5 g of the compound is burnt in presence of air, 0.3 g of H_(2)O is formed. 0.05 gram-mole of the compound contains 4.8g of oxygen. what is the molecular formula off the compound?

On complete combustion, 0.246 g of an organic compound gave 0.198 g of CO_(2) and 0.1014 of H_(2)O . Find the percentage composition of the organic compound.

PATHFINDER-MOLE AND STOICHIOMETRY-I-QUESTION BANK
  1. A sample of gaseous hydrocarbon occupying 1.12 litre at NTP, when comp...

    Text Solution

    |

  2. 4g C3H8 and 14 g O2 are allowed to react to the maximum possible exten...

    Text Solution

    |

  3. A sample of a pure compound contains 2.04 g of Na, 2.65 xx 10^22 atoms...

    Text Solution

    |

  4. The molecular formula of a commercial resin used for exchanging ions i...

    Text Solution

    |

  5. 20.0 g of a magnesium carbonate sample decomposes on heating to give c...

    Text Solution

    |

  6. The number of water molecules is maximum in-

    Text Solution

    |

  7. What is the mole fraction of the solute in a 1.00 m aqueous solution ?

    Text Solution

    |

  8. If Avogadro number NA is changed from 6.022 xx 10^23 mol^(-1) to 6.022...

    Text Solution

    |

  9. If Avogadro number NA is changed from 6.022 xx 10^23 mol^(-1) to 6.022...

    Text Solution

    |

  10. If Avogadro number NA is changed from 6.022 xx 10^23 mol^(-1) to 6.02...

    Text Solution

    |

  11. If Avogadro number NA is changed from 6.022 xx 10^23 mol^(-1) to 6.02...

    Text Solution

    |

  12. What is the mass of precipitation formed when 50 mL of 16.9% solution ...

    Text Solution

    |

  13. The ratio of masses of oxygen and nitrogen in a particular gaseous mix...

    Text Solution

    |

  14. The system that contains the maximum number of atoms is

    Text Solution

    |

  15. The volume of ethyl alcohol (density= 1.15 g//cc) that has to be added...

    Text Solution

    |

  16. 1.0 g of magnesium is burnt with 0.56 g O2 in a closed vessel.Which re...

    Text Solution

    |

  17. In acidic medium,H2O2 changes Cr2O7^(-2) to CrO5 which has two (-O-O-)...

    Text Solution

    |

  18. Number of molecules in one litre of water is close to

    Text Solution

    |

  19. If 20 g of CaCO3 is treated with 100 mL of 20% HCl solution, the amoun...

    Text Solution

    |

  20. 0.56 g of a gas occupies 280 cm^3 at NTP, then its molecular mass is

    Text Solution

    |