The carbon-14 decay rate of a sample obtained from a young tree is 0.263 disintegration per second per gram of the sample. Another wood sample prepared from an object recovered at an archaeological excavation gives a decay rate of 0.195 disintegration per second per gram of the sample. What is the age of the object? (The half-life of carbon-14 is 5715 years.) x 10. years Enter your answer in scientific notation.

The carbon-14 decay rate of a sample obtained from a young tree is 0.263 disintegration per second per gram of the sample. Another wood sample prepared from an object recovered at an archaeological excavation gives a decay rate of 0.195 disintegration per second per gram of the sample. What is the age of the object? (The half-life of carbon-14 is 5715 years.) x 10. years Enter your answer in scientific notation.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

2. A wooden object from an archeological site is subjected to radiocarbon dating. The activity of the sample that is due to ¹4C is measured to be 11.6 disintegrations per second. The activity of a carbon sample of equal mass from fresh wood is 15.2 disintegrations per second. The half-life of 14C is 5715 yr. What is the age of the archeological sample? Select Editing
A radioactive isotope has a half-life of 46.3 minutes. how long will it take for the radiation from a 580 PCI sample to decrease to 145 PCI
Stonehenge is an ancient megalithic site in southern England. Some believe it was designed to make astronomical observations, but archaeologists cannot agree on the reason that Stonehenge was constructed. Charcoal samples taken from a series of holes at Stonehenge have about 0.33 pounds of carbon-14 in a 06 pound sample. Estimate the age of the charcoal pits at Stonehenge Assume that the half-life of carbon-14 is 8333 years.
The half‑lives of different medical radioisotopes are given in the table. If the initial amount of chromium‑51 is 133 mCi, how much chromium‑51 is left in the body after 84 days? Radioisotope Half‑life (days) arsenic‑74 18 iodine‑131 8 phosphorus‑32 14 chromium‑51 28
A sample of bone is subjected to radiocarbon dating. The current decay rate observed for its carbon-14 content is 11.2 disintegrations per minute per gram of carbon. What is the age (in years) of the bone? The half-life for carbon-14 is 5.73 x 103 yrs, and the decay rate for carbon-14 in living organisms is 14.3 disintegrations per minute per gram of carbon.
In order to solve for the rate constant, k, in two steps you must: Step One Add the same expression to each side of the equation to leave the term that includes the variable by itself on the right- hand side of the expression: (Be sure that the answer field changes from light yellow to dark yellow before releasing your answer.) +[A] - kt + [A], Drag and drop your selection from the following list to complete the answer: 1 1 [A.] -[Ao] - [A.] [Ao] Submit
The half life for the decay of carbon-14 is 5.73 × 10³ years. Suppose the activity due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from an archeological dig is measured to be 17. Bq. The activity in a similar-sized sample of fresh wood is measured to be 18. Bq. Calculate the age of the artifact. Round your answer to 2 significant digits. years x10 X
2. Tellurium-123 is a radioactive isotope occurring in natural tellurium. The decay constant is 1.7 x 1021 / s. What is the half-life in years?