A tiny sample of a fabric is burned to CO2, and the 14C/12C ratio is 0.350 times the ratio in today's atmosphere. How old is the fabric if the half-life of carbon-14 is 5730 years? A 8676 years В 9252 years 10,320 years 11,425 years

Q: Phosphorus-32 is a radioisotope used in the treatment of leukemia and pancreatic cancer. If the…

A: Given, Phosphorus-32 in a sample decreases from 1.2g to 0.30g in 28 days . We have to calculate half…

Q: A normal adult jawbone contains 200mg of Carbon-14 in a living person. If scientists found a jawbone…

A: Calculate the value of rate constant (k):

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A: The exponential decay of the radioactive substance is given as A = A0ekt The amount of radioactive…

Q: An Egyptian papyrus is discovered and it is found that the ratio of 14C to 12C is 65% of the known…

A:

Q: 9. A wood artifact is known to have decayed and only 55% of the original artifact remains. The age…

A: Since, you have asked multiple questions, we will solve the first question for you.  In Question-9…

Q: The half-lives of different medical radioisotopes are given in the table. If the initial amount of…

A: It is radioactive substance. Every radioactive substance follows first order reaction kinetics. So,…

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A:

Q: Suppose 67.5% of a sample of radioactive 24Na has decayed after one day. Estimate the half-life of…

A: Solution is given below in next step

Q: Carbon-14 (14C) dating assumes that the carbon dioxide on the Earth today has the same radioactive…

A: The question is based on the concept of determination of age of the given sample. we know how much…

Q: Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a radiotherapy…

A: All radioactive decays are first order reactions. The integrated rate law for 1st order reaction is…

Q: Using applications of Differential Equations. The half-life of carbon 14 is 5730 years. It takes…

A: The correct option is (d) Half life of carbon-14 is is 5730 as it is clearly given in question.

Q: ) What fraction of a radioactive sample remains after one, two, and three half-lives have elapsed?…

A: Radioactivity is a nuclear phenomenon where nucleus of a heavy element undergoes spontaneous decay…

Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: We have to calculate the amount lost .

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 3.97 years. How…

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Q: Nitrogen-13 is used in tracers injected into the bloodstream for positron emission tomography (PET),…

A: Hii there, since there are multiple questions posted. We are answering first question. If you need…

Q: A normal adult jawbone contains 200 mg of Carbon-14 in a living person. If scientists found a…

A: Radioactivity is the phenomenon in which an unstable nucleus loses energy.

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How…

A:

Q: The isotope 90/38 Sr is one of the extremely hazardous species in the residues from nuclear power…

A:

Q: The half-life for Americium-241 is ______432 years__________. ? A smoke detector requires about 0.3…

A: As per guidelines we are allowed to answer one question but first question answer is very small , so…

Q: Archaeologists used pieces of burned wood, or charcoal, found at the site to date prehistoric…

A: Given data is as follows: The initial amount of C-14, A° = 100 The amount left after time "t" , A=…

Q: (Q114) A meteorite recovered from a meteor landing site in the Australian outback contains 0.438 g…

A: we have to calculate the age of meteorite

Q: A tiny sample of a fabric is burned to CO2, and the 14C/12C ratio is 0.350 times the ratio in…

A:

Q: F-18, also referred to as Fludeoxyglucose is a radiopharmaceutical that is used in medical imaging,…

A: Fluorine-18 is the fluorine radioisotope, an important source of the positrons. The mass of F-18 is…

Q: An archaeologist finds some ancient jewelry made from bone. The jewelry has a carbon mass of 482 g…

A: Nuclear decay follows 1st order reaction.  Given the half-life of C-14, t1/2 = 5730 year…

Q: 44 of 48 If the half-life of a radioisotope is 3 years, the radioactivity remaining in a sample of…

A: (a) the half life is 3 year, Now, amount of sample remaining after 6 years is, 6 years means 2 half…

Q: 3. Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a…

A: Given, half life of Cobalt-60 =5.26 yr date of purchase of sample = June 2010

Q: A normal adult jaw bone contains 200mg of carbon -14 in a living person. If scientists found a…

A: Decay of C-14 follow 1st order kinetics λ (decay constant) = 0.693/t1/2 = 0.693 / 5730 years = 1.21…

Q: Phosphorus-32 is a radioisotope used to detect certain types of tumors. P-32 has an effective…

A: Phosphorus-32 is a radioisotope used to detect certain types of tumours. P-32 has an effective…

Q: Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a radiotherapy…

A: There are some unstable nuclei which undergo radioactive decay by emission oc charged particles.…

Q: original

A: t1/2 =  8.02 days t = ? for 99% decay

Q: Calculate the half-life of an isotope if 155.2 mg disintegrates to 19.40 mg in 12.9 min.

A: Given    Initial Amount [ A ]0         = 155.2 mg    Remaining amount [ A ]t  = 19.40 mg   Time ( t…

Q: Carbon extracted from an ancient skull combined only one-sixth as much as C14 as carbon extracted…

A:

Q: If a tree dies and the trunk remains undisturbed for 1.535 × 10⁴ years, what percentage of the…

A: Degradation of the  14C  is as per the first order reaction. We are having half life that can give…

Q: The half life for the decay of carbon-14 is 5.73 × 10’ years. Suppose the activity due to the…

A: We have to calculate the age of artifact.

Q: Stonehenge is an ancient megalithic site in southern England. Some believe it was designed to make…

A: Given: Sample=6 pound Carbon-14=0.33 Pounds t12=8333 years To find: Age of charcoal pits Solution:…

Q: how many atoms would be present after 20.0days?

A:

Q: How many hours are needed for a 16.0 g sample of Si-31 to decay to 2.0 g? The half-life for Si-31 is…

A: Solution -

Q: If a tree dies and the trunk remains undisturbed for 1.015 x 104 years, what percentage of the…

A:

Q: n unknown radioactive element decays into non-radioactive substances. In 440440 days the…

A: a) Given :-  Given that, in 440 days the radioactivity of a sample decreases by 37 percent.  i.e.…

Q: The half-life of 90Sr is 28 years. How long will it take for a given sample of to be 73% decomposed?…

A: Given, Half life of 90Sr (t1/2)  = 28 years Time required for a decomposition of 73% of the given…

Q: A 120-mgmg sample of technetium-99 mm is used for a diagnostic test. If technetium-99 mm has a…

A: Solution -

Q: 3. Thorium-232 has a radioactive decay series that ultimately produces lead-208. What is the…

A:

Q: Archeologists continue to debate the arrival of the first humans in the Western Hemisphere.…

A: We know that,→ Radioactivity Phenomena follow first owner kinetics.So, Rate = KA1    K→Rate…

Q: A tiny sample of fabric is burned to CO2, and the 14C/12C ratio is 0.350 times the ratio in today’s…

A:

Q: The half-life of Strontium-85 is 65 days. How much of a 80. mg sample is left after 260 days? mg

A: Given: Initial mass of sample = 80 mg  Time passed = 260 days. And the half-life of isotope = 65…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.