Home
Class 11
CHEMISTRY
From 0.2 kg calcium, 1.2xx10^(24) atoms ...

From 0.2 kg calcium, `1.2xx10^(24)` atoms are removed. The number of g-atoms of calcium left is:
[Take: `N_(A) =6xx10^(23), Ca=40`]

Text Solution

Verified by Experts

The correct Answer is:
3
Promotional Banner

Topper's Solved these Questions

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Match the columns|25 Videos
  • ISOMERISM

    GRB PUBLICATION|Exercise SUBJECTIVE TYPE|67 Videos
  • NOMENCLATURE AND CLASSIFICATION

    GRB PUBLICATION|Exercise Subjective Type|24 Videos

Similar Questions

Explore conceptually related problems

From 2 mg calcium, 1.2 xx 10^(19) atoms are removed. The number of g-atoms of calcium left is:

The total number of protons in 10g of calcium carbonate is (N_(0) = 6.023xx10^(23))

The number of gm -molecules of oxygen in 6.0xx10^(24) CO molecules is: [Take:N_(A)=6xx10^(23)]

The total number of protons in 10 g of calcium carbonate is (N_(0) = 6.023 xx 10^(23)) :-

The atomic mass of calcium (Ca) is 40 g. The number of moles in 60 g of calcium are

GRB PUBLICATION-MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS-Subjective type
  1. The density of mercury is 13.6 gm//ml. The diameter of an atom of mer...

    Text Solution

    |

  2. The number of gm -molecules of oxygen in 6.0xx10^(24) CO molecules is:...

    Text Solution

    |

  3. From 0.2 kg calcium, 1.2xx10^(24) atoms are removed. The number of g-a...

    Text Solution

    |

  4. A 12.0 gm sample of magnesium is burnt in air to form magnesium oxide ...

    Text Solution

    |

  5. The number of alkoxy groups in an organic compound, A(OR)(x), may be d...

    Text Solution

    |

  6. Water gas contains CO and H(2) in mole ratio, 1:1. A nickel ore contai...

    Text Solution

    |

  7. A mixture pf H(2) , N(2) and O(2) occupying 100 ml underwent reactio...

    Text Solution

    |

  8. 4.54 L O(2) gas at STP is liberated from all H(2)O(2) present in 200 m...

    Text Solution

    |

  9. 50 ml of a gaseous mixture of hydrogen and hydrogen chloride was expos...

    Text Solution

    |

  10. Br(2)(l) reacts with Cl(2)(g) to form BrCl and BrCl(3), simultaneously...

    Text Solution

    |

  11. Find the density of CO(2)(g) with respect to N(2)O(g).

    Text Solution

    |

  12. 340 g of NH(3)(M=17) when decomposes how many liters of nitrogen gas i...

    Text Solution

    |

  13. 117 gm NaCl is dissolved in 500 ml aqueous solution. Find the molarity...

    Text Solution

    |

  14. If, from 10 moles NH(3) and 5 moles of H(2)SO(4), all the H-atoms are ...

    Text Solution

    |

  15. If from 3 moles MgSO(4).7H(2)O, all the 'O' atoms are taken out and co...

    Text Solution

    |

  16. The density of liquid mercury is 13.6 g//cm^(3). How many moles of mer...

    Text Solution

    |

  17. A fluorine disposal plant was constructed to carryout the reactions: ...

    Text Solution

    |

  18. The following process has been used to obtain iodine from oil-field dr...

    Text Solution

    |

  19. Carbon disulphide, CS(2) can be made from by-product SO(2). The overal...

    Text Solution

    |

  20. Find the Cl^(-) concentration in solution which is obtained by mixing ...

    Text Solution

    |