Home
Class 12
CHEMISTRY
A sample of impure cuprite, Cu2O contai...

A sample of impure cuprite, `Cu_2O` contains 66.6% copper. Calculate the percentage of pure `Cu_2O` in the sample.

Text Solution

Verified by Experts

The correct Answer is:
0.75
Promotional Banner

Topper's Solved these Questions

  • MISCELLANEOUS OBJECTIVE QUESTIONS

    RC MUKHERJEE|Exercise MCQ|277 Videos

  • MOLECULAR WEIGHT

    RC MUKHERJEE|Exercise PROBLEMS |12 Videos

Similar Questions

Explore conceptually related problems

An impure sample of CaCO_(3) contains 38 % of Ca. The percentage of impurity present in the sample is :

A sample of common salt has 45.5% chlorine. What is the weight percentage of pure sodium chloride in the sample?

The 'roasting' of 100.0 g of a copper ore yielded 71.8 g pure copper. If the ore is composed of Cu_(2)S and CuS with 4.5% inert impurity, calculate the percent of Cu_(2)S in the ore. The reactions are: Cu_(2)S+O_(2)rarr2Cu+SO_(2) and CuS+O_(2)rarrCu+SO_(2) [Atomic masses Cu=63.5m S=32] [Give answer exculuding decimal places]

On analysing 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 ?

RC MUKHERJEE-MISCELLANEOUS PROBLEMS FOR REVISION-SUBJECTIVE TYPE QUESTIONS
  1. What is the solubility of AgCl in 0.1M AgNO(3) solution? What is the s...

    Text Solution

    |

  2. The tallest trees known are the redwoods in California. Assuming the h...

    Text Solution

    |

  3. A sample of impure cuprite, Cu2O contains 66.6% copper. Calculate the...

    Text Solution

    |

  4. How much Ag^+ would remain in solution after mixing equal volumes of...

    Text Solution

    |

  5. A vessel of 250 litre was filled with 0.01 mole of Sb(2)S(3) and 0.01 ...

    Text Solution

    |

  6. A solution is 0.10 M Co^(2+) and 0.10 M Hg^(2+) . Calculate the ran...

    Text Solution

    |

  7. Calculate the following cell reaction cell at 298 K. 2Ag^(+)+Cd to 2...

    Text Solution

    |

  8. A peroxidase enzyme isolated from human red blood cells was found to c...

    Text Solution

    |

  9. In an experiment to measure the charge on an electron, the following v...

    Text Solution

    |

  10. A diatomic molecule has a dipole moment of 1.2 D. If its bond distance...

    Text Solution

    |

  11. At the top of a mountain a thermometer reads 0^@C and a barometer rea...

    Text Solution

    |

  12. What is the pH of a 0.50M aqueous NaCN solution ? (pK(b)of CN^(-)=4.70...

    Text Solution

    |

  13. In the reaction, I^(-)+I(2)toI(3)^(-) the Lewis acid is…..

    Text Solution

    |

  14. Potassium superoxide, KO2 , is used in rebreathing gas masks to genera...

    Text Solution

    |

  15. A 0.288 g sample of an unknown monoprotic organic acid is dissolved in...

    Text Solution

    |

  16. How many grams of NaCl can be added to 785 mL of 0.0015 M AgNO3 befor...

    Text Solution

    |

  17. Metallic Ba has a body-centred cubic structure (all atoms at the latti...

    Text Solution

    |

  18. In a reaction: 2ClO2 (aq) + 2I^(-) (aq) to 2ClO2^(-) + I2(aq) ...

    Text Solution

    |

  19. A 0.1 molal solution of an acid is 4.5% ionized. Calculate freezing po...

    Text Solution

    |

  20. How much heat is required to change 10 g of ice at 0^@C to steam at 1...

    Text Solution

    |