Chemistry

The cloth shroud from around a mummy is found to have a carbon-14 activity of 8.1 disintegrations per minute per gram of carbon as compared with living organisms that undergo 15.2 disintegrations per minute per gram of carbon.

From the half-life for carbon-14 decay, 5715 yr, calculate the age of the shroud.

  1. 👍
  2. 👎
  3. 👁
  1. k = 0.693/t1/2
    k = 0.693/5715yr = 1.213E-4
    Substitute k into the below equation.
    ln(No/N) = kt
    No = 15.2
    N = 8.1
    k from above.
    Solve for t (in years).

    1. 👍
    2. 👎
  2. Thanks.

    1. 👍
    2. 👎
  3. gttgttyujntf

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. word problem(algebra)

    mary has y m of cloth.she used 2 m to sew a skirt.she used the remaining cloth to make 5 jackets. (a) find the amount of material that was used to make each jacket in terms of y. (b) if she has 17 m of cloth.how much material was

  2. math

    ann has 2 1/3 meters of cloth.she used 5/3 meter for a dress.how much cloth remained?

  3. Radioactivity

    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) A specimen taken from the wrappings of a mummy contains 7.02 g of carbon and has an activity

  4. math

    Alice Correa bought three yards of cloth to make a dress. The cloth was on sale for $1.93 per yard. How much did Alice pay for the cloth if the sales tax was 5 percent?

  1. Physics Need help please

    An ancient wooden club is found that contains 270g of carbon and has an activity of 8.3 decays per second. Determine its age assuming that in living trees the ratio of 14C/12C atoms is about 1.3x10^-12? t= in years

  2. science/biology

    Read the scenario. A graduate student is running a PCR reaction to study DNA extracted from an Egyptian mummy. The reaction does not seem to be working, so he checks his notes to see what he added to the reaction mix. He find the

  3. maths

    5/8 part of 40m long cloth was sold. How many metres of cloth was left?

  4. math

    if 8m cloth costs RS 250 find the cost of 5.8m of the same cloth

  1. Precalculus

    The burial cloth of an Egyptian mummy is estimated to contain 57% of the carbon-14 it contained originally. How long ago was the mummy buried? (The half-life of carbon-14 is 5730 years.)

  2. Pre Calculus

    The burial cloth of an Egyptian mummy is estimated to contain 56% of the carbon-14 it contained originally. How long ago was the mummy buried? (the half-life of carbon-14 is 5730). Please round the answer to the nearest tenth. I

  3. Algebra

    A mummy discovered in Egypt has lost 46% of its carbon-14. Determine its age.

  4. physics

    A magician pulls a tablecloth from under a 200 g mug located 30.0 cm from the edge of the cloth. The cloth exerts a friction force of 0.105 N on the mug, and the cloth is pulled with a constant acceleration of 3.50 m/s2. How far

You can view more similar questions or ask a new question.