Home
Class 11
CHEMISTRY
A substances on analysis for the followi...

A substances on analysis for the following percentage composition the formula composition: `Na = 43.4 %,C = 11.3 %`, O= 45.3%. Calculate the emperical formula [Na = 23, C=12, O=16]

Text Solution

Verified by Experts


`therefore` Empirical formula `Na_(2)CO_(3)`.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTION WITH ANSWERS|18 Videos
  • S-Block Elements

    SUBHASH PUBLICATION|Exercise Three marks questions and answers|8 Videos
  • STATES OF MATTER : GASES AND LIQUIDS

    SUBHASH PUBLICATION|Exercise NUMERICAL PROBLEMS AND ANSWERS|25 Videos

Similar Questions

Explore conceptually related problems

A substance on analysis, gave the following percentage composition, Na = 43.4%, C = 11.3%, 0 = 45.3% calculate its empirical formula [Na = 23, C = 12, O = 16].

A compound has the following composition Mg = 9.76%, S = 13.01 %, O=26.01, H_(2)O = 51.22% , What is its emperical formula [Mg = 24, S=32, O=16, H=1]

An orgainc compound contains 43.98% C , 2.09% H , and 37.2% Cl . Calculate its empirical formula.

A compound on analysis gave the following percentage composition: Na=14.31% S = 9.97%, H = 6.22%, O = 69.5%, calcualte the molecular formula of the compound on the assumption that all the hydrogen in the compound is present in combination with oxygen as water of crystallisation. Molecular mass of the compound is 322 [Na = 23, S = 32, H = 1, 0 = 16].

A compound has the following percentage composition. Carbon 80%, Hydrogen 20%? If the molecular mass is 30, Calculate the molecular formula.

An organic compound contains C = 40%, H = 13.33% and N-46.67%. Its emperical formula is

A compound has the following composition Mg = 9.76%,S = 13.01%, 0 = 26.01, H_2O = 51.22, what is its empirical formula? [Mg = 24, S = 32, O = 16, H = 1]

SUBHASH PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY -NUMERICAL PROBLEMS AND ANSWERS:
  1. Find the Molarity of Hydrochloric acid containing 31.5% of hydrochlori...

    Text Solution

    |

  2. Calculate the molecular mass of (i) oxalic and (ii) Formic acid (iii) ...

    Text Solution

    |

  3. 25.0 cm^(3) of an acid required exactly 20.5 cm^(3) of deci molar base...

    Text Solution

    |

  4. Exactly 20.0 cm^(3) of nitric acid neutralized 28.4 cm^(3) of 0.25 M N...

    Text Solution

    |

  5. 18.5 cm^(3) of oxalic acid was completely neutralised by 20.0 cm^(3), ...

    Text Solution

    |

  6. Calculate the number of moles of atoms in 10.2 g of sodium.

    Text Solution

    |

  7. Calculate the number of moles in (a) 10 g of Hydrogen molecules (b) 30...

    Text Solution

    |

  8. Calculate the mass of the following is grams (a) 5.4 moles of O(2) (b)...

    Text Solution

    |

  9. How many atoms of oxygen are present in 300 g of CaCO(3)?

    Text Solution

    |

  10. Calculate number of atoms in (a) 2.5 mole atoms of nitrogen (b) 8.4 of...

    Text Solution

    |

  11. Calculate the number of molecules in each of the following (a) 24 g of...

    Text Solution

    |

  12. A substances on analysis for the following percentage composition the ...

    Text Solution

    |

  13. A compound has the following composition Mg = 9.76%, S = 13.01 %, O=26...

    Text Solution

    |

  14. A compound has the following percentage composition. Carbon 80%, Hydro...

    Text Solution

    |

  15. An organic compound on analyis found to contain 92.3 % carbon and 7.7%...

    Text Solution

    |

  16. 4.2 g of Mg is burnt in 4.8 g of slushy to form magnesium sulphide.Wha...

    Text Solution

    |

  17. 50.0 kg of N(2) (g) and 10.0 kg of H(2) (g) are mixed, to produce NH(3...

    Text Solution

    |

  18. Commercially available conc. HCl contains 38% HCl by mass. (a) What is...

    Text Solution

    |

  19. How many grams of oxgyen (O(2)) are required to completely react with ...

    Text Solution

    |

  20. What is the volume of oxygen at STP can be produced by 8.1 g of potass...

    Text Solution

    |