Home
Class 11
CHEMISTRY
A sample of radioactive element with t(0...

A sample of radioactive element with `t_(0.5)` of 11.2yr weigh 2.0 g . After 33.6 yrs how much is left ?

A

0.25 g

B

0.5 g

C

0.75 g

D

1.0 g

Text Solution

Verified by Experts

The correct Answer is:
A
`n=(t)/(t_(1//2))=(33.6)/(11.2)=3`
`N=(N_(0))/(2^(n))=(2.0 g)/(4)=0.25 g `
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Brain Teasers-8|40 Videos

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Unit Test 4|40 Videos

  • NUCLEAR AND RADIO CHEMISTRY

    DINESH PUBLICATION|Exercise Ultimate Preparatory Package|13 Videos

  • NOMENCLATURE OF ORGANIC COMPOUNDS

    DINESH PUBLICATION|Exercise MCQs|13 Videos

  • ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES

    DINESH PUBLICATION|Exercise PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS|38 Videos

Similar Questions

Explore conceptually related problems

A sample of radioactive isotope with a half life of 20 days weighs 1 g . After 40 days the weight of the remaining elements is a. 0.5 g b. 0.0 g c. 0.25 g d. 1//6 g

A sample of radioactive element has a mass of 10 g at an instant t=0 . The approximate mass of this element in the sample after two mean lives is

A sample of a radioactive element has a mass of 10 g at an instant t=0. The approximate mass of this element in the sample left after two mean lives is

A sample of a radioactive element has a mass of 10 g at an instant t=0 . The approxiamte mass of this element in the sample after two mean lives is .

A radioactive element has half life period of 30 days. How much of it will be left after 90 days?

A radioactive element has half-life period of 30 days. How much of it will be left after 90 days?

One gram of a radioactive element decays by beta -emission to 0.125 in 200 hours. How much more time will elapse only 0.10 g of it is left?

A sample of an element is 10.38 g. If half-life of element is 3.8 days, then after 19 days how much quantity of element remains?

DINESH PUBLICATION-NUCLEAR AND RADIO CHEMISTRY-Brain Teasers-7
  1. How many hour are required for a current of 3.0 ampere to decompose 18...

    Text Solution

    |

  2. The nuclear reaction given below is of …… type ""(13)^(27)Al + ""(2)...

    Text Solution

    |

  3. A sample of radioactive element with t(0.5) of 11.2yr weigh 2.0 g . Af...

    Text Solution

    |

  4. The t(0.5) of a radioactive element is related to its average life by ...

    Text Solution

    |

  5. Which one is an example of miceller system?

    Text Solution

    |

  6. Which of the following is the best protective colloid?

    Text Solution

    |

  7. The coagulation of 100ml of colloidal solution of gold is completely p...

    Text Solution

    |

  8. A isoelectric point

    Text Solution

    |

  9. Gold number was given by :

    Text Solution

    |

  10. The accumulation of gases on surface of solids is called as

    Text Solution

    |

  11. In the Leclanche dry cell, anode is

    Text Solution

    |

  12. If the specific conductance and conductance of a solution are same, th...

    Text Solution

    |

  13. Which of the following solutions will have the highest specific conduc...

    Text Solution

    |

  14. The term quinhydrone means

    Text Solution

    |

  15. The standard electrode potential of the electrode Ag(s) , AgCl| KCl (1...

    Text Solution

    |

  16. The calomel electrode is reversible with repect to :

    Text Solution

    |

  17. In potentiometric titrations, the end point of a titration is determin...

    Text Solution

    |

  18. In a concentration cell the

    Text Solution

    |

  19. The electrode potential of a glass electrode depends upon

    Text Solution

    |

  20. Lithium is generally used as an electrode in high energy density batte...

    Text Solution

    |