ChemB

posted by .

measurements of carbon 14 taken from linen wrappings of the book of isaiah from the dead sea scrolls indicate that the scrolls contain 79.5% of the carbon 14 expected in living tissue. how old are these scrolls if the half life of carbon 14 is 5730 years? All radioactive decay is first order.

  • ChemB -

    k = 0.693/t1/2
    Then
    ln(No/N) = kt
    No = 100
    N = 79.5
    k from above
    solve for t in years.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Nuclear physics

    1) An old wooden tool is found to contain only 11.9 percent of 14C that a sample of fresh wood would. How many years old is the tool?
  2. Nuclear physics Repost

    1) An old wooden tool is found to contain only 11.9 percent of 14C that a sample of fresh wood would. How many years old is the tool?
  3. physicsRadioactivity

    A specimen taken from the wrappings of a mummy contains 7.02 g of carbon and has an activity of 1.34 Bq. How old is the mummy?
  4. chemistry math

    linen scrolls contain 80.9% of Carbon-14. how old are the scrolls if the half-life for deacy is 5.73X10^3?
  5. calculus

    Carbon-14 is a radioactive substance produced in the Earth's atmosphere and then absorbed by plants and animals on the surface of the earth. It has a half-life (the time it takes for half the amount of a sample to decay) of approximately …
  6. english II

    Errors in the use of punctuation marks - Comma The answer is d. A.Birds such as eagles, hawks, and falcons are known as raptors. B.Money raised by the sale of UNICEF greeting cards goes toward famine relief, health care, and education. …
  7. english II

    Errors in the use of punctuation marks - Comma A.Birds such as eagles, hawks, and falcons are known as raptors. B.Money raised by the sale of UNICEF greeting cards goes toward famine relief, health care, and education. C.The Dead Sea …
  8. English

    # Errors in the use of punctuation marks - Comma Answer Birds such as eagles, hawks, and falcons are known as raptors. Money raised by the sale of UNICEF greeting cards goes toward famine relief, health care, and education. The Dead …
  9. 6th Grade History

    1. What was the importance of the Dead Sea Scrolls and according to them who was to survive?
  10. algebra

    Use the fact that after 5715 years a given amount of carbon 14 will have decayed to half the original amount to find the exponential decay model for carbon 14. In 1947, earthenware jars containing what was known as the Dead Sea scrolls …

More Similar Questions