Science

posted by .

Carbon-14 has a half-life of about 5,600 years. Archaeologists analyze a piece of wood found at an ancient village site and determine that, of he initial 100 grams of Carbon-14 in the wood, onl 3.125 grams are left. How old is the wood?

  • Science -

    3.125=100(1/2)^n/thalf

    take log both sides...

    log(3.125)=2+n/thlaf (log.5)
    so solve for n, then grab you calculator and have fun.

  • Science -

    8898

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chem

    Can someone please help me with the following questions?
  2. physics

    A wooden artifact is found in an ancient tomb. Its carbon-14 activity is measured to be 60.0% of that in a fresh sample of wood from the same region. Assuming the same amount of carbon-14 was initially present in the wood from which …
  3. Alg2

    A piece of wood discovered in an archaeological dig was found to have lost 62% of it's carbon-14. Carbon-14 has a half-life of 5630 years. Determine it's age.
  4. chemistry

    A wooden object from a prehistoric site has a carbon-14 activity of 10 counts per min.(cpm) compared to 40 cpm for new wood. If carbon-14 has a half life of 5730 years what is the age of the wood?
  5. earth science

    what would be the chart to use for carbon 14 whcih has a half life of 5730 years and a piece of wood which originally has 12 grams pf radioactive isotope; If the half lives occurred and now has 0.75 grams left?
  6. math

    the bridge was built, the wood contained 15 grams of carbon-14. How much carbon- 14 would it have contained when it was found by the archaeologists?
  7. Chemistry

    A piece of wood found in an ancient city has a carbon-14 to carbon-12 ratio that is one-eighth the carbon-14 to carbon-12 ratio of a tree growing nearby. How old is the piece of wood?
  8. Physics

    (a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it died, determine the age of the fossil?
  9. Intermediate Maths

    (a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it died, determine the age of the fossil?
  10. Final Maths

    (a)-A fossilised tree was tested and contains 10 grams of Carbon-14. Given that there was 12 grams of Carbon-14 present when it died, determine the age of the fossil?

More Similar Questions