Chemistry Homework Solutions
#84836
Simple half-life question (based on disintegration per minute)
The well-preserved remains of a now extinct woolly mammoth is entombed
in the permafrost lands of Siberia. Scientists have conducted carbon dating
experiments on plant debris found in the stomachs of this mammoth. The C-14 activity of the mammoths was measured at 1.499999999999999 disintegration per minute per gram of carbon. How many years ago did the Siberian mammoth die?
This 4 pages long solution describing in full details how to utilize the radioactive exponential decay concepts such as half-life to the question of carbon-14 dating.
What is this?
By OTA - Overall OTA Rating
Yinon Shafrir, PhD - 5/5
Purchase Cost Now
$2.19 CAD (was ~$11.97)
Included in Download
- Plain text response
- Attached file(s):
- BM 84836.pdf
- BM 84836.doc
Why you can trust BrainMass.com
- Your Information is Secure
- Best Online Academic Help Service
- Students find real academic Success
- Isotopes & Radioactive Decay. Includes using relationships between half-life (t1/2), decay constant, understanding decay. - The isotope C14 has a half-life of 5700 years. What fraction of the C14 atoms will decay (a) each year, and (b) each minute?
- Understanding carbon 14 dating and half lives. - The age of a piece of wood from an ancient source is determined by carbon dating. The carbon-14 content of a sample of the wood is found to be one-fourth that of living trees. The half life of carbon- ...
- Half life - The half life of Cl is 9.5 x 10(exponent 12)s. How many atoms of Cl are present in a sample with an activity of 1.5 x 10(exponent 9) atoms/s a. 2.1 x 10(exponent 22) atoms b. 6.3 x 10(exponent ...
- If it takes 10.0 minutes for 5000 atoms of a radioactive isotope to decay to 2500 atoms, how many of the original 5000 atoms remain after 30.0 minutes? - If it takes 10.0 minutes for 5000 atoms of a radioactive isotope to decay to 2500 atoms, how many of the original 5000 atoms remain after 30.0 minutes?
- Carbon dating of ancient bone - If one gram of Carbon 14 nuclides from an old bone is found to give off 0.478 decays (energy units) per minute, how old is this sample if originally the carbon-14 sample gives off 7.65 decays per minu ...
