Home
Class 12
CHEMISTRY
A sample of chalk contains clay as impur...

A sample of chalk contains clay as impurity. The clay impurity loses 11% of its weight as moisture on prolong heating. 5 gram sample of chalk on heating shows a loss in weight (due to evolution of `CO_(2)` and water) by 1.1 g. Calculate % of chalk `(CaCO_(3))` in the sample. [Hint : Chalk `(CaCO_(3))` release `CO_(2)` on heating]

Text Solution

Verified by Experts

The correct Answer is:
`33.33%`
Promotional Banner

Topper's Solved these Questions

  • MOLE CONCEPT

    MOTION|Exercise EXERCISE - 4 LEVEL - I|14 Videos
  • MOLE CONCEPT

    MOTION|Exercise EXERCISE - 4 LEVEL - II|13 Videos
  • MOLE CONCEPT

    MOTION|Exercise EXERCISE - 2 (LEVEL - II)|17 Videos
  • METALLURGY

    MOTION|Exercise EXERCISE 4 (LEVEL - II)|17 Videos
  • NOMENCLATURE OF ORGANIC COMPOUNDS

    MOTION|Exercise PREVIOUS YEAR|8 Videos

Similar Questions

Explore conceptually related problems

20 g mixture of Na_(2)CO_(3) and CaCO_(3) is gently heated. On heating this sample produces 2.24 litre of CO_(2) at STP. Calculate the % weight of Na_(2)CO_(3) in that sample.

The volume of CO_(2) at STP obtained by heating 1 g of CaCO_(3) will be

22.74 L of CO_(2) obtained at NTP by complete decomposition of 4 mol CaCO_(3) sample. Percentage purity of sample is :-

245 g impure sample of KClO_3 on heating gives 12gO_2(g) according to 2KClO_3(s)rarr2KCl(s)+3 O_2(g) Calculate % purity of sample ?

10 g CaCO_3 gives on strong heating CO_2. It gives quicklime ( in grams)

Chalk contains 10% calcium, 3% carbon and 12% oxygen. Find the amount of carbon and calcium (in grams) in 2""1/2" kg of chalk.

MOTION-MOLE CONCEPT-EXERCISE - 3
  1. A 5.5 gm sample of an organic compound gave on quantitative analysis 1...

    Text Solution

    |

  2. The elements A and B form a compound that contains 60% A and 40% B by ...

    Text Solution

    |

  3. A sample of chalk contains clay as impurity. The clay impurity loses 1...

    Text Solution

    |

  4. A sample of clay was partially dried. It then contained 50% slica and ...

    Text Solution

    |

  5. In an organic compound of molar mass greater than 100 containing only ...

    Text Solution

    |

  6. The simplest formula of a compound containing 50% of an element X (ato...

    Text Solution

    |

  7. The sodium salt of methyul orange has 7% sodium. What is the minimum m...

    Text Solution

    |

  8. In the following equation : FeS(2)+O(2) rarr Fe(2)O(3)+SO(2) Calcu...

    Text Solution

    |

  9. Equal weights of Zn metal and iodine are mixed together and I(1) is co...

    Text Solution

    |

  10. Li metal is one of the few substances that reacts directly with molecu...

    Text Solution

    |

  11. Carbon disulphide CS(2) can be made from be product SO(2). The overall...

    Text Solution

    |

  12. 1.0 mole of Fe reacts completely with 0.65 mole of O(2) to give a mixt...

    Text Solution

    |

  13. One mole of potassium chlorate is thermally decomposed and excess of a...

    Text Solution

    |

  14. How many moles of potassium chlorate need to be heated to produce 11.2...

    Text Solution

    |

  15. When x grams of carbon are heated with y grams of oxygen in a closed v...

    Text Solution

    |

  16. If a piece of iron gains 10% of its weight due to partial rusting into...

    Text Solution

    |

  17. A chemist wants to prepare diborane by the reaction BF(3) rarr 6 L...

    Text Solution

    |

  18. Carbon reacts with chlorine to form C""Cl(4). 36 gm of carbon was mixe...

    Text Solution

    |

  19. P(4)S(3)+8O(2) rarr P(4)O(10)+3SO(2) Calculate minimum mass of P(4)S...

    Text Solution

    |

  20. By the reaction of carbon and oxygen, a mixture of CO and CO(2) is obt...

    Text Solution

    |