Carbon obtained from a sample of frozen skin in a glacier is found to have one-sixteenth the 14C-to-12c ratio of present-day carbon. About how old is the skin? The half-life of 14C is 5730 years. years old

Q: How long will it take a radioactive sample of iodine-131 (half-life 8.07  d ) to lose 99.2  %  of…

A: The given disintegration reaction is first order reaction. Half life t1/2 = 0.693 / K 8.07 days =…

Q: Iodine-125 is a radioactive isotope commonly used in medicine. It has a half-life of 59.5 days. A…

A: Half life of iodine -125 = 59.5 daysInitial amount of iodine -125 = 2.00 kgFinal amount of iodine…

Q: Phosphorus-32 is a radioactive isotope with a half-life of 14.3 d (d = days). A biochemist has a…

A: A radioactive decay follows the first order kinetics where the rate of the reaction depends on the…

Q: Carbon 14 dating assumes that the carbon dioxide on Earth today has the same radioactive content as…

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Q: If a tree dies and the trunk remains undisturbed for 1.210 × 10⁴ years, what percentage of the…

A: given data is  half-life is 5730 years remains undisturbed for 1.210 x 104 years

Q: If a tree dies and the trunk remains undisturbed for 1.770 × 10⁴ years, what percentage of the…

A: The objective of this question is to find out the percentage of the original 14C (Carbon-14) that is…

Q: what is the na-me, 1/2, 01 12 = day:

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Q: If a tree dies and the trunk remains undisturbed for 1.160 × 10⁴ years, what percentage of the…

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Q: What is the half-life (in years) of a 1900-mg sample of a certain radioisotope that decays to 43.5…

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Q: 3)The half-life of 14C is 5730 years. A sample contains 90.5% of the 14C it would contain if it were…

A: Given : half life = 5730 years  Tip : apply the radioactivity equation

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

A: Here by applying first order disintegration equation ,we can determine the age of artifacts.

Q: A rock found in the Australian Outback contains 438 g of Pb-206 for every 1.00 g of U-238. How old…

A: The objective of the question is to determine the age of a rock based on the ratio of Pb-206 to…

Q: Technetium-99m (the ‘m’ means a ‘metastable’ or moderately stable species) is generated in nuclear…

A: Use half life and date constant formula  Final mass= 125.95mg

Q: The half-life of 14C is 5730 years. A sample contains 92.4% of the 14C it would contain if it were…

A: The age of the old fossils can be find out by using carbon dating method.  So the amount of 14C…

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.80 billion years old by…

A:

Q: If a tree dies and the trunk remains undisturbed for 1.375 × 10⁴ years, what percentage of the…

A: Radioactive decay follows first-order kinetics. The half-life of the first-order reaction does not…

Q: The half life for the decay of carbon-14 is 5.73 × × 10³ years. Suppose the activity due to the…

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Q: The natural abundance of 14C in the earth's atmosphere and all living organisms is approximately…

A: Half-life is the time taken for the reactant to reduce the amount of the isotope to half its initial…

Q: The half life for the decay of carbon-14 is 5.73 x 1 × 10³ years. Suppose the activity due to the…

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Q: carbon as a piece of modern charcoal. How long ago was the tree burned to make the ancient charcoal?…

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Q: If a tree dies and the trunk remains undisturbed for 1.895 × 10ª years, what percentage of the…

A: Mass% is equal to the ratio of the mass of the given substance to the total mass of the substance.…

Q: The radioactive nuclide 55Co has a half-life of 17.5 hours. What mass of 55Co remains from a 0.0100…

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Q: 14C decays to 12C with a half-life of about 5,700 years. Suppose you find a fossil in which the…

A: Radioactive decay follows the first-order kinetics. The half-life of the first-order reaction does…

Q: If a tree dies and the trunk remains undisturbed for 1.305 × 104 years, what percentage of the…

A:

Q: If a tree dies and the trunk remains undisturbed for 1.775 × 10⁴ years, what percentage of the…

A: Given-> Half life = 5730 year  Time = 1.775 × 104 year.

Q: Polonium-211 has a half-life of 12 years. How much of a 32 gram sample remains after 60 years?

A: We know nuclear decay follows first-order reaction so- relation between decay constant and half life…

Q: An archaeologist claims that a bone in her collection is from a saber-tooth tiger that is believed…

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Q: Ruthenium-106 (106Ru) is used to treat melanoma in the eye. This isotope decays by β– emission with…

A: Radioactive decay is identified as a process during which an unstable nuclide of an atom changes to…

Q: Phosphorus-32 is a radioactive isotope with a half-life of 14.3 d (d = days). A biochemist has a…

A: Radioactive decomposition follows first order kinetics. Integrated rate law for first order is

Q: Imagine you collected a volcanic rock while on vacation to Hawaii and you want to know how old it…

A: GIVEN: Amount of parent nuclei (U-234) = 4 micrograms Amount of daughter nuclei (Th- 230) = 124…

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 4.00 billion years old by…

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Q: Isotope X has a half-life of 71.8 years. If a sample initially contains 676. mg of X, what mass of X…

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Q: If a rock sample was found to contain 1.27 x 10-7 mol of argon-40, how much potassium-40 would also…

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Q: original

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

Q: If a tree dies and the trunk remains undisturbed for 1.195 × 10⁴ years, what percentage of the…

A: Carbon dating is a technique to estimate the age of the tree or rock

Q: If a tree dies and the trunk remains undisturbed for 1.690 × 10⁴ years, what percentage of the…

A: If a tree dies and the trunk remains undisturbed for 1.690 × 10⁴ years, what percentage of the…

Q: A rock is analyzed in the laboratory for radiometric dating and found to contain 1/8 parent atoms…

A: Any process that occurs by radioactive decay follows first-order kinetics. The equation used to…

Q: Rubidium-87 decays by β production to strontium-87 with a half life of 4.7 × 1010 years. What is the…

A: In general, the radioactive decay follows first-order kinetics. For the first-order reaction, the…

Q: The half-life of cobalt-60 is 5.3 years. How long will it take for a 1.000-mg sample of cobalt-60 to…

A: Given: The half-life of Co-60 is 5.3 years. The initial amount of Co-60 is 1.000 mg. The amount of…

Q: Radium-223 decays with a half-life of 11.4 days. How long will it take for a 0.240 mol sample of…

A: