Home
Class 12
CHEMISTRY
The half-life periof of a radioactive el...

The half-life periof of a radioactive element is `40` days. If `32 g` of this element is stored for `160 days`, calculate the weight of the element that would remain in gram.

Text Solution

Verified by Experts

The correct Answer is:
2
Amount remaining after `n` half lives is
`=N_(0)/2^(n) (N_(0)= "initial amount")`
`=32/((2)^(4))=2 g [n= "number of half lives" =169/40 =4]`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises Fill In The Blanks|37 Videos

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises True/False|29 Videos

  • CHEMICAL KINETICS

    CENGAGE CHEMISTRY|Exercise Exercises Assertion-Reasoning|22 Videos

  • CARBOXYLIC ACIDS AND THEIR DERIVATIVES

    CENGAGE CHEMISTRY|Exercise Exercises Archives (Analytical And Descriptive)|34 Videos

  • COORDINATION COMPOUNDS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|18 Videos

Similar Questions

Explore conceptually related problems

Half-life of a radioactive element.

The half life period of radio active element is 140 days. After 560 days 1gm of element will reduce to

Knowledge Check

  • Half-life period for radioactive element is

    A
    Always constant
    B
    Variable
    C
    Independent of final concentrationn
    D
    Independent of initial concentration

  • The half-life period of a radioactive element is 140 day. After 560 days, 1 g of the element will reduce to

    A
    `1//8 g`
    B
    `1//16 g`
    C
    `1//4 g`
    D
    `1//2 g`

  • The half-life period of radioactive element is 140 days. After 560 days, 1 g of element will reduce to

    A
    `1/2`g
    B
    `1/4`g
    C
    `1/8`g
    D
    `1/16`g

    • Similar Questions

    Explore conceptually related problems

    The half life period of a radioactive elements does not depend upon:

    The half - life periof of a radioactive element is 140 days. After 560 days, one gram of the element will reduce to

    The half-life period of a radioactive element is 140 days. After 560 days, one gram of the element will reduce to

    The half-life period of a radioactive element is 140 days. After 560 days, one gram of the element will reduce to

    Half-life of radioactive element depend upon

    Home
    Profile