Home
Class 11
CHEMISTRY
Calculate the percentage of Cu in CuO...

Calculate the percentage of `Cu` in `CuO`

Text Solution

Verified by Experts

Atomic mass of the `Cu=63.546`, Formula mass of `CuO=63.546+15.999=79.545`
Mass % of `Cu =(63.546)/(79.545)xx100=79.886`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    BRILLIANT PUBLICATION|Exercise LEVEL-I|55 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    BRILLIANT PUBLICATION|Exercise LEVEL-II (ASSERTION REASON TYPE QUESTIONS)|7 Videos

  • SOME BASIC CONCAPTS OF CHEMISTRY

    BRILLIANT PUBLICATION|Exercise LEVEL-III (Linked Comprehension Type)|6 Videos

  • STATES OF MATTER

    BRILLIANT PUBLICATION|Exercise LEVEL III (Linked Comprehension Type )|9 Videos

Similar Questions

Explore conceptually related problems

Calculate the percentage of magnesium in MgSO_4

Calculate the percentage of nitrogen in NH_3 (Atomic mass of N = 14, H = 1amu)

0.3780 g an organic compound gave 0.5740 g AgCl in Carius method. Calculate the percentage of chlorine in it.

The radius of a sphere is 12.4 ± 0.1 cm.Calculate the percentage error in surface area of the sphere (A = 4pi r^2) .

0.2475 g of an organic compound gave on combustion 0.4950 g of carbon dioxide and 0.2025 g of water. Calculate the percentage of carbon and hydrogen in it.

Calculate the mass percentage of oxygen in CaCO_3 .

A solution is obtained by mixing 300 g of '25 %' solution and '400 g' of '40 %' solution by mass. Calculate the mass percentage of the resulting solution.

BRILLIANT PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-QUESTIONS
  1. Find the number of moles in 45g of water.

    Text Solution

    |

  2. Find the number of moles in 7.8L of N(2) at STP.

    Text Solution

    |

  3. Calculate the percentage of Cu in CuO

    Text Solution

    |

  4. Calculate the mass % of oxygen in Fe(3)O(4)

    Text Solution

    |

  5. An organic compound contains 40% carbon, 6.67% hydrogen and 53.33% oxy...

    Text Solution

    |

  6. Calculate the mass of CaO formed from 25g of CaCO(3) on strong heating...

    Text Solution

    |

  7. Calculate the volume of CO2 evolved at STP when 10g of CaCO3 is treate...

    Text Solution

    |

  8. What is the volume of H2 produced by the decomposition of 5L of NH3 at...

    Text Solution

    |

  9. Find out the limiting reagent when 5g of H2 reacts with 24g of O2 to f...

    Text Solution

    |

  10. Construct an ionic equation for the neutralisation of HNO3 and KOH.

    Text Solution

    |

  11. Calculate the mass percent of a solution containing 2.5g of KCl in 50 ...

    Text Solution

    |

  12. Calculate the molarity of a solution containing 2.8g of KOH per litre ...

    Text Solution

    |

  13. 250mL of 0.2M H(2)SO(4) is mixed with 100mL of 0.5M H(2)SO(4). What is...

    Text Solution

    |

  14. What is the final molarity of a solution of 9.8g H(2)SO(4) in 250mL wa...

    Text Solution

    |

  15. How much water should be added to 3M HCl to get 1L 0.25M HCl?

    Text Solution

    |

  16. Calculate the molarity of 10% by mass KCl in water solution (molecular...

    Text Solution

    |

  17. The density of 2.5 M acetic acid in water is 1.02g ml^(-1). Calculate...

    Text Solution

    |

  18. What is the normality of a solution of 0.285 mol of NaOH dissolved in ...

    Text Solution

    |

  19. 50 mL acid is titrated against 0.25N base. It took 22.3 mL of base to ...

    Text Solution

    |

  20. What is the mole fraction of the solute in a 1m aqueous solution?

    Text Solution

    |