radiocarbon dated. Based on other clues, you think that the leather should be 2500 years old. What activity ought to come back from the lab, in Bq per gram of carbon? (These sorts of checks are important in science.) The base carbon-14 activity is 0.231 Bg per gram of carbon and the decay constant of carbon-14 is 1. 21x10-4 1/vear

radiocarbon dated. Based on other clues, you think that the leather should be 2500 years old. What activity ought to come back from the lab, in Bq per gram of carbon? (These sorts of checks are important in science.) The base carbon-14 activity is 0.231 Bg per gram of carbon and the decay constant of carbon-14 is 1. 21x10-4 1/vear

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...

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Similar questions

In radioactive dating using carbon-14 and carbon-12, why is it essential that carbon-12 be a stable isotope?
A rock contains 0.684 mg of 20°Pb for every 1.000 mg of 238U present. Assuming that no lead was originally present, that all the 20°PPB formed over the years has remained in the rock, and that the number of nuclides in intermediate stages of decay between 238U and 200Pb is negligible, calculate the age of the rock. (For 238U, t,2 = 4.5x10° years.) yr
Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute (cpm) per gram of carbon. If a bone is determined to have an activity of 10.5 cpm per gram of carbon, how old is the bone in the unit of years? Please report an integer.
Find the activity of a sample containing 5.69 10-6 g of 60-27 Co (T1/2 = 5.27 years).
A sample of cesium-137 has an activity of 8.00 mCi. How many micrograms of Cs-137 are present in the sample? T1/2=30.08 years
The following isotopes are all stable : 20Ne, Ne, 22Ne 10+ 10- While the following is not, so what be its decay likely? 23 Ne 10- Alpha Positron Electron capture Beta
Which radioactive decay is most probable? O 14c → 4N + B O 1%c → ZBe + x O 14c → 1ºc + B• O 14c → '}B + B+
Fluorine-18 is a radioactive isotope use in a variety of medical imaging proceduresincluding positron emission tomography (PET) scans. Fluorine-18 decays by positron emissionwith a half-life of 1.83 hours. A medical sample containing 18F has an activity of 4.00 millicuries. How many picograms of18F are present in the sample? The atomic mass of 18F is 18.00 g/mol. (1 picogram = 1×10–12g 1 Curie = 3.7×10–10 decays/sec 1 millicurie = 1×10–3 Curies)