Home
Class 11
CHEMISTRY
On analyzing an impure sample of sodium ...

On analyzing an impure sample of sodium chloride, the percentage of chlorine was found to be 45.5. What is the percentage of pure sodium chloride in the sample?

Text Solution

Verified by Experts

Molecular mass of pure sodium chloride = 58.5u
Percentage of chlorine in pure NaCl = `(35.5/58.5) xx 100 = 60.6` if chlorine is 60.6 than NaCl is 100
If chlorine is 45.5 than Nacl is `(45.5/60.6)xx100 = 75%` of pure NaCl=75`
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    PATHFINDER|Exercise QUESTION BANK|373 Videos

  • CHEMICAL BONDING

    PATHFINDER|Exercise QUESTION BANK|69 Videos

Similar Questions

Explore conceptually related problems

What is the most abundant source of sodium chloride?

The structure of sodium chloride crystal is:

Sodium chloride present in ORS is -

What is the number of unit cells in 936 amu of sodium chloride ?

6g of an impure sample of potassium chlorate gives 1.9g of oxygen on heating in presence of a catalyst. What is the percentage of purity of the sample. [K = 39,Cl = 35.5, O = 16]

In the crystals structures of sodium chloride, the arrangement of Cl^(-) ions is

5g of an impure sample of common slat on treatment with excess of AgNO_(3) solution yields 9.812g of AgCl . What is the percentgae impurity of that sample ?

_____mass of sodium chloride is 58.45.

What is the symbol of Sodium Chloride?

PATHFINDER-BASICS IN CHEMISTRY-QUESTION BANK
  1. Calculate the mass of 2.5 gram atom of magnesium.

    Text Solution

    |

  2. How many gram molecules are present in 4.9g of H2SO4?

    Text Solution

    |

  3. Why do we regard the gaseous state of water as vapours while that ammo...

    Text Solution

    |

  4. An element has fractional atomic mass. What does this indicate?

    Text Solution

    |

  5. When 4.2 g NaHCO3 is added to a solution of CH3COOH, weighing 10 g, it...

    Text Solution

    |

  6. Copper sulphate crystals contain 25.45% Cu and 36.07% H2O. If law of c...

    Text Solution

    |

  7. 10 ml of H2 contain 2000 molecules under certain temperature and press...

    Text Solution

    |

  8. One volume of hydrogen combines with sulphur to produce one volume of ...

    Text Solution

    |

  9. A flask P contains 0.5 mole of oxygen gas. Another flask Q contains 0....

    Text Solution

    |

  10. From 200mg of CO2, 10^21 molecules are removed. How many moles of CO2 ...

    Text Solution

    |

  11. How many molecules of CO2 are present in one litre of air containing 0...

    Text Solution

    |

  12. On analyzing an impure sample of sodium chloride, the percentage of ch...

    Text Solution

    |

  13. Copper gives two oxides. On heating one gram of each in hydrogen, we g...

    Text Solution

    |

  14. The average atomic mass of copper is 63.5u. It exists as two isotopes ...

    Text Solution

    |

  15. P and Q are two elements which form P2Q3 and PQ2 molecules. If 0.15g m...

    Text Solution

    |

  16. A compound on analysis was found to contain C=34.6%, H=3.85% and O = 6...

    Text Solution

    |

  17. On heating 1.763 g of hydrated BaCI2 to dryness, 1.505g of anhydrous s...

    Text Solution

    |

  18. 1.0g of Mg is burnt in a closed vessel which contains 0.5g of O2. Whic...

    Text Solution

    |

  19. A mixture of FeO and Fe3O4 when heated in air to a constant weight gai...

    Text Solution

    |

  20. Butyric acid contains C,H,O elements. A4.24 mg sample of butyric acid ...

    Text Solution

    |