Home
Class 9
CHEMISTRY
Arrive at the chemcial formulae of calci...

Arrive at the chemcial formulae of calcium nitrate. Calcium its percentage composition.

Text Solution

Verified by Experts

Molar mass of calcium nitrate, `Ca(NO_(3))_(2)`
`"Atomic mass of Ca"+2"Atomic mass ofN"+6"Atomic mass of O"`
`=40+2xx14+6xx14=40+28+96=164u`
`"Percentage of calcium (Ca)"=("Mass of Ca")/("Molecular mass of"Ca(NO_(3))_(2))xx100=((40u))/((164u))xx100=24.39%`
`"Percentage of calcium (N)"=("Mass of N")/("Molecular mass of"Ca(NO_(3))_(2))xx100=((28u))/((164u))xx100=17.07%`
`"Percentage of calcium (O)"=("Mass of O")/("Molecular mass of"Ca(NO_(3))_(2))xx100=((96u))/((164u))xx100=58.54%`
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    DINESH PUBLICATION|Exercise NCERT IN TEXT PROBLEMS|16 Videos

  • ATOMS AND MOLECULES

    DINESH PUBLICATION|Exercise N.C.E.R.T. END EXERCISE|11 Videos

  • IS MATTER AROUND US PURE

    DINESH PUBLICATION|Exercise LAQs|10 Videos

Similar Questions

Explore conceptually related problems

Write the chemical formulae of : Calcium nitrate

Write the formula of calcium nitrate .

The chemical formula for calcium chlorite is

The formula of calcium cyanamide is

The chemcial formula of test gas is :

Write the chemical formulae of () sodium carbonate (ii) calcium sulphate?

DINESH PUBLICATION-ATOMS AND MOLECULES-LONG ANSWER QUESTIONS
  1. Arrive at the chemcial formulae of calcium nitrate. Calcium its percen...

    Text Solution

    |

  2. Veriy by calculating that a) 5 moles of CO(2) and 5 moles of H(2)O d...

    Text Solution

    |

  3. Find the ratio by mass of the combining elements in the following comp...

    Text Solution

    |

  4. Calcium chlroide when dissolved in water dissociates into its ions acc...

    Text Solution

    |

  5. The difference in the mass of 100 moles of each of sodium atoms and so...

    Text Solution

    |

  6. Cinnabar (HgS) is a prominent ore of mercury. How many grams of mercur...

    Text Solution

    |

  7. The mass of one steel screw is 4.11 g. Find the mass of the of one mol...

    Text Solution

    |

  8. A sample of vitamin C is known to contain 2.58 xx 10^(24) oxygen atoms...

    Text Solution

    |

  9. Raunak took 5 moles of carbon atoms in a container and Krish also took...

    Text Solution

    |

  10. Fill in the missing data in the given table

    Text Solution

    |

  11. The visible universe is estimated to contain 10^(22) stars. How many m...

    Text Solution

    |

  12. What is the SI prefix for each of the following multiples and submulti...

    Text Solution

    |

  13. Express each of the following in kilograms a) 5.84 xx 10^(-3)mg b)...

    Text Solution

    |

  14. Compute the difference in masses of 10^(3) moles of each of magnesium ...

    Text Solution

    |

  15. Which has more number of atoms? 100g of N(2) or 100g of NH(3)

    Text Solution

    |

  16. Compute the number of ions present in 5.85g of sodium chloride.

    Text Solution

    |

  17. A gold sample contains 90% of gold and the rest copper. How many atoms...

    Text Solution

    |

  18. What are ionic and molecular compounds? Give exmples.

    Text Solution

    |

  19. Compute the difference in masses of one mole each of aluminium atoms a...

    Text Solution

    |

  20. A silver ornament of mass 'm' gram is polished with gold equivalent to...

    Text Solution

    |

  21. A sample of ethane (C(2)H(6)) gas has the same mass a 1.5 xx 10^(20) m...

    Text Solution

    |