Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to 1/32.0 of the original amount. How long ago was this plant alive? Express your answer numerically in years

Q: carbon from a cypress beam obtained from the tomb of an ancient egyptian king gave 9.2…

A: The decay constant can be calculated as

Q: In addition to C-14, K-40 is often used for archeological dating. K-40 decays to Ar- 40 by positron…

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Q: Carbon-14 has a half life of 5730 years. How much carbon-14 would remain after 34380 years if the…

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Q: Strontium-90 is radioactive and has a half life of 28.8 years. What percentage of a sample would be…

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Q: Answer  4460 years

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Q: Uranium-240 has a half-life of 14.1 hours (note this is NOT a fissionable isotope).  A country with…

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

A: Given: Half-life of carbon-14 decay = 5730 years. Activity of carbon-14 in the sample = 51 Bq. And…

Q: Carbon-14 has a half-life of 5730  years . In a plant fossil, you find that the  14C  has decayed to…

A:

Q: Carbon-14 has a half life of 5730 years. In a plant fossil, you find that the 14C has decayed to…

A: Given that, half life , t12= of 5730 years. and  14C has decayed to 1/8.00 of the original amount

Q: Calculate the age of the Shroud of Turin given that the amount of “C found in it is 92 percent of…

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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: If 29.5% of the original amount of 14C is present in a wooden tool at the time of analysis, what is…

A: Since the carbon decay is a first order kinetics reaction Hence for the first order reaction we can…

Q: You have a sample of Bismuth-212 to prepare for an upcoming medical test.  This isotope has a…

A: The radioactivity follows first-order kinetics. The half-life relates to the rate constant, k for…

Q: PET scans require fluorine-18, which is produced in a cyclotron and decays with a half-life of 1.83…

A: Given: Half life, T1/2 = 1.83 hrVelocity of transport, v= 60.0 miles/hrfinal Concentration of F-18 =…

Q: Carbon-14 has a half-life of 5730 years. In a plant fossil, you find that the 14C has decayed to…

A: Given,                 Isotope = 14C                 Half life =5730 years                 Remaining…

Q: The half-life of tritium is 12.3 years. If 48.0 mg of tritium is released from a nuclear power plant…

A: Given data contains, Half-life of tritium is 12.3 years Mass of tritium is 48.0 g Time t is 5.0…

Q: A sample of coral has a carbon-14 content of 12.5% the value of living coral.  If the half-life of…

A: Given  Half life of Carbon - 14 = 5730 years Remaining amount   = 12.5 %  Time ( t ) = ?

Q: a substance with a half-life of 23.1049 seconds. you start with 12 mg of the substance (a) write the…

A: The decay of substance follow exponential rule. Half life is defined as the time required by any…

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

A: Given that : Half-life of carbon-14 = 5.73 x 103 years The activity due to the radioactive decay =…

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

A:

Q: In a sample of a radioactive isotope, 20.0 % has decayed after 30.0 days. Calculate the half-life of…

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Q: A wooden object from a prehistoric site has a carbon-14 activity of 10 counts per minute (CPM)…

A: Given: Half-life = 5730 years [A]=10 cpm [A]0 = 40 cpm

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: 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: A rock was dated using Carbon-14 (half life = 5730 years). If the percentage of the parent atoms…

A: Given data contains, Half-life of C-14 is 5730 years. Percentage of parent atoms is 12.5%. N0 is…

Q: Calculate the age of a fossil that had 100 g of C-14 and now it has 12.5 g of C-14. The half-life of…

A: Use first order kinetic formula to get answer. Half life is given in years so we can use first order…

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: A certain radioactive material is known to decay at a rate proportional to the amount present. If…

A: Consider the given information is as follows; Initial amount N0 = 500 mg Amount after 3 Nt years =…

Q: The half-life of radium 226 is 1602 years. If you have 500 grams of radium today how many grams…

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

A: We need to calculate age of the wood sample

Q: The half-life of a radioactive nucleus is 1.5·10 -8 s. What is this half-life in milliseconds (ms),…

A: The half-life of the given radioactive nucleus is 1.5×10-8 s. This half-life can be converted into…

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

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

A: Given: The half-life of carbon-14 = 5.73 × 103 years The activity of the sample = 81 Bq The activity…

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

A:

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

A: Given: Half-life of carbon-14 decay = 5730 years. Activity of carbon-14 in the sample = 90 Bq. And…

Q: an artifiact has a carbon-14 concentration that is 12.5%(1/8th) of that found in living organisms.…

A:

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

A: Given: The half-life for the decay of carbon= 5.73×103 years The activity of fresh wood sample= 99…

Q: Carbon-14 has a half-life of 5730 yearsyears. In a plant fossil, you find that the 14C14C has…

A: Given data:

Q: A rock contains 0.257 mg of lead-206 for every milligram of uranium-238. The half-life for the decay…

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Q: Carbon-14 has a half-life of 5715 years. It is used to determine the age of ancient objects. If a…

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Q: A wooden artifact from an ancient tomb contains 30 percent of the carbon -14 that is present in…

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Q: Radioactive decay can be described by the following equation In A = In Ao - kt where Ao is the…

A:

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

A:

Q: The isotope Np-238 has a half life of 2.0 days. If 96 grams of it were present on Monday, how much…

A: Here given, The half-life of Np-238 (t1/2)= 2 days. Initial amount present (N0) = 96 g Time (t) = 6…