Home
Class 12
CHEMISTRY
A substance on analysis, gave the follow...

A substance on analysis, gave the following percentage composition : Na = 43.4 %, C = 11.3%, O = 45.3 %. Calculate the empirical formula. (Na = 23, C = 12, O = 16).

Text Solution

AI Generated Solution

To calculate the empirical formula from the given percentage composition of the elements, we will follow these steps: ### Step 1: Convert percentage composition to moles We will convert the percentage of each element into moles using the formula: \[ \text{Moles of element} = \frac{\text{Percentage of element}}{\text{Atomic mass of element}} \] ...
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPT OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|60 Videos

  • SOME BASIC CONCEPT OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT( SECTION - A) Objective Type Questions|20 Videos

  • SOME BASIC CONCEPT OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT( SECTION - D) Assertion-Reason Type Questions|15 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION J (Aakash Challenges Questions)|10 Videos

Similar Questions

Explore conceptually related problems

An inorganic substance on analysis gave the following results Na = 29.1%, S = .40.5% and O = 30.4%. Calculate its empirical formula.

A compound on analysis gave the following percentage composition : Na= 14.31%, S = 9.97%, H = 6.22%, O = 69.50%. Calculate 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. (At. wt. of Na = 23, S = 32, H = 1, O = 16)

A crystalline compound when heated became anhydrous by losing 51.2 % of the mass. On analysis, the anhydrous compound gave the following percentage composition: Mg = 20.0 %, S = 26.66 % and O = 53.33 %, Calculate the molecular formula of the anhydrous compound and crystalline compound. The molecular mass of anhydrous compound is 120 u.

An inorganic compound on analysis was found to have following composition : Mg = 9.76%, S = 13.01%, O = 26.01%, H_2O = 51.22% Calculate the empirical formula of the compound.

A substance used as a water softener has the following mass percentage composition : 42.07% Na, 18.9% P , and 39.04% of oxygen. Determine the empirical formula of the compound. (Na = 23, P = 31, 0 = 16)

A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% Its vapour density is 50. Find the Empirical formula. (H = 1; C = 12; O = 16).

A compound has the following percentage composition : C = 40%, H = 6. 7%, O = 53.3%, the vapour density of the compound is 30. Calculate its molecular formula (C = 12, H = 1, O = 16).

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

The compound A has 26.7% C, 71.1% O and 2.2%H. determine the empirical formula of A

A chemical compound is found to have the following composition : C = 19.5%, Fe = 15.2%, N = 22.8%, K = 42.5% Calculate the empirical formula of the compound. What will be the molecular formula if the molecular mass of the compound is 368 ?

AAKASH INSTITUTE ENGLISH-SOME BASIC CONCEPT OF CHEMISTRY-TRY YOURSELF
  1. 2,75 g of cupric oxide was reduced by heating in a current of hydrogen...

    Text Solution

    |

  2. The activation energy of a gas reaction is 30 kcal/mol in the temperat...

    Text Solution

    |

  3. On analysis it was found that the black oxide of copper and red oxide ...

    Text Solution

    |

  4. Sulphur and oxygen are known to form two compounds. The sulphur conten...

    Text Solution

    |

  5. Boron has two isotopes, B-10 and B-11. The average atomic mass of boro...

    Text Solution

    |

  6. Carbon found nature as a mixture of C-12 and C-13. The average atomic ...

    Text Solution

    |

  7. What will be the weight of CO having the same number of oxygen atoms a...

    Text Solution

    |

  8. What is the molecular mass of substance, each molecule of which contai...

    Text Solution

    |

  9. How many molecules of O(2) are present in 1 L air containing 80% volum...

    Text Solution

    |

  10. Calculate the volume occupied by (i) 28 u nitrogen gas (ii) 28 g N(2) ...

    Text Solution

    |

  11. Calculate percentage of sulphur in sulphuric acid (H(2)SO(4)).

    Text Solution

    |

  12. Calculate percentage of carbon in ethanol (C(2)H(5)OH).

    Text Solution

    |

  13. A substance on analysis, gave the following percentage composition : N...

    Text Solution

    |

  14. A compound gave the following data: C = 57.82%,0 = 38.58% and the r...

    Text Solution

    |

  15. Calculate the amount of water (g) produced by the combustion of 16 g o...

    Text Solution

    |

  16. How many moles of methane are required to produce 22 g of CO(2) on c...

    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. 80 g of H(2) is reacted with 80 g of O(2) to form water. Find out the ...

    Text Solution

    |

  19. A given solution of NaOH contains 200 g of NaOH per litre of solution....

    Text Solution

    |

  20. How many moles of HCl are present in 1 litre of 1 M HCl solution ?

    Text Solution

    |