BRINE SOLUTION PROBLEM: Carbon-14 is a radioactive isotope of carbon that has a half-life of 5600 years. It is used extensively in dating organic material that is tens of thousands of years old. What fraction of the original amount of Carbon-14 in a sample would be present after 10,000 years?

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

Q: The half-life for electron capture for is 1.30 × 109 years. What percent of the original remains…

A: Half life of electron=1.30 × 10 ^9 years Time=1.31×10^9years

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A: Characteristics of Radioactive materials

Q: Carbon-14 Dating An exponential decay functioncan be used to model the number of atoms of…

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Q: Rubidium (87Rb) decays to Strontium (87Sr) with a half-life value of 48.8 billion years. 87Rb is the…

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Q: The radioactive isotope of lead, Pb-209, decays at a rate proportional to the amount present at time…

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Q: After 50 years, what mass (in g) remains of a 200.0 g sample of a radioactive isotope with a…

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Q: 6) Cobalt-60 is a radioisotope used as a source of ionizing radiation in cancer treatment (The…

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Q: olve the problem. 2) The decay of 989 mg of an isotope is given by A(t)= 989e-0.022t, where t is…

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Q: A 3.126 g sample of technetium-95 is sealed in a container. After 44.2 hours, the amount of…

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Q: The rate of radioactive decay follows first-order kinetics where the rate of decay is proportional…

A: First order kinetics of reaction

Q: The half-life of radium-226 is 1600 years. Suppose we have a 22-mg sample presently. (a)  How much…

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Q: ) A human bone uncovered in a burial site in Majorca, Spain by a student working for the pollentia…

A: Given, Rate constant of decay of  of C-14, K=1.2094×10-4yr-1

Q: The amount of a radioisotope that remains after two half-lives have passed is:

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Q: A patient is given 1.11 ug of a radioactive isotope with a half-life of 3.13 hours. How many hours…

A: (a). Given: The initial amount of the radioactive isotope, [A0] = 1.11 μg The remaining amount of…

Q: What is the original amount of the sample of 3H after 36 years & 6 months if 0.002kg are left? Hint:…

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Q: Phosphorus-32 (0) decays by beta emission to form sulfur-32 (©). How many half-lives have passed in…

A: Phosphorus-32  decays by beta emission to form sulfur-32. We have to find How many half-lives have…

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Q: The half-life of radioactive element is 5 years. The yearly decay rate is After 12 yearS, of the…

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Q: What is a rem? > View Available Hint(s) O the original unit of activity that is defined as…

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Q: Radioactive tungsten-178 decays with a half-life of 21.6 days. (a) What is the value of k in s"17…

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.