A normal adult jawbone contains 200 mg of Carbon-14 in a living person. If scientists found a jawbone that only had 50mg of Carbon-14, how old is the bone? (The half-life of C-14 is 5730 years).

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

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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):

Q: A sample of wood from an Egyptian mummy case has a specific activity of 9.41 d/min-g. How old is the…

A: Solution: We know that --- for a sample of wood from an Egyptian mummy which is related to…

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A: The decay constant can be calculated as

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A: half life = 5.27 years

Q: eological site conta

A: Given N=2,400 decays/min m=500g=0.500kg Half-life 0f  C14 ,T12  =5,730 year

Q: A bone has a carbon-14 decay rate of 4.85 disintegrations per minute per gram of carbon. If a living…

A: Given : Decay rate of carbon-14 in bone = 4.85 disintegration per minute per gram of carbon Decay…

Q: What is the original mass of C-14 in a sample if 10.00 mg of it remains after 20,000 years? The…

A: The C-14 decays according to first order kinetics. Since we know that the relationship between the…

Q: How old is a rock if the mineral biotite from the rock has 75,000 40K atoms and 25,000 40Ar atoms?…

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Q: Answer  4460 years

A: Expression for half-life period of radioactive element is given as,

Q: 7. The age of an ancient tree trunk is estimated using radiocarbon dating. If the tree gives 3.75…

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Q: Samples recovered from an archaeological site are determined to have a 14C activity of 1.3 dpm/g.…

A: Given:   The activity of C-14 from recovered sample is 1.3 dpm/g. The activity of C-14 in living…

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

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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: 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: Iodine – 125 emits gamma rays when it decays to Tellerium-125 and has a half-life of 60 days. If a…

A: The radioactive decay always follows the first order kinetics. The radioactive decay of I-125 must…

Q: A wooden statue found in Egypt has a carbon-14 content that is three-fifths of that found in living…

A: Given: A wooden statue found in Egypt has a carbon-14 content that is three-fifths of that found in…

Q: A fossilized bone is found to contain 1/1000 the original amount of C – 14. Determine the age of the…

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Q: If half-life of carbon-14 is 5730 years, estimate the age of a bone containing 75% of its original…

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Q: Normal No Spacing Head 三三。 Paragraph Styles 22. A normal adult jawbone contains 200 mg of Carbon-14…

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Q: What is C-14 activity in a sample that is 2.0 x 104 yr old? Assume that C-14 activity in the living…

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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: 2. If a sample known to be about 17190 years old has 400 carbon-14 atoms, how many atoms were in the…

A: When organism died absorption of C-14 stops and starts diminishing. The radioactive decay follows…

Q: lodine - 125 emits gamma rays when it decays to Tellerium-125 and has a half-life of 60 days. If a…

A:

Q: 22. A normal adult jawbone contains 200 mg of Carbon-14 in a living person. If scientists found a…

A: Given initial Concentration of C-14         = 200 mg Remaining Concentration of C-14 = 50  mg  Half…

Q: In 1947 samples of the Dead Sea Scrolls were analyzed by carbon dating. It was found that the…

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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 sample of a wooden artifact gives 5.0 disintegrations/min/g carbon. The half-life of C-14 is 5730…

A: Half life is defined as the time taken by a radioactive sample to decay to half of its original…

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

A:

Q: The half-life of radiogold is approximately 3 days. If 1.5 g of this has been administered to a…

A:

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

A: Given, half life of C-14 = 5730 years. Exponential decay equation : A(t) = Ao ekt Since half life is…

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: What is the estimated age of a material whose C-14 activity is only 30% that of living wood? (C-14…

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Q: The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced…

A: The initial mass of the sample of palladium-100, No, in mg is calculated as shown below where t1/2…

Q: The half-life of carbon-14 is approximately 5730 years. At an archacological dig a fossil is…

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Q: The half-life of 14C is 5,730 yr. Assuming some charcoal from a campfire 29,000 years old was found,…

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Q: Given that the ratio of C/1C 13.6 counts per minute per gram living matter remains constant, if a…

A: This problem is based on radioactivity. Since all the radioactive reactions generally follows first…

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

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

A: Given data:

Q: 3. Natural thorium consists entirely of the alpha-radioactive isotopes 232Th which has a half-life…

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Q: A sample of wooden artifact is found to undergo 8 HC disintegrations per minute per gram of carbon.…

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Q: If the half-life of compound FUSHA is 131 years, assuming that a 500g sample of meteorite containing…

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Q: A bone has a carbon-14 decay rate of 4.98 disintegrations per minute per gram of carbon. If a living…

A: Solution : N0= 4.98 dpm N(t) = 15.3 dpm  t1/2 = 5715 years  t = ?

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

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Q: What is the approximate age of the artifact?

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Q: How old is a rock if the mineral biotite from the rock has 25,000 40K atoms and 75, 000 40Ar atoms?…

A: Every atoms of Ar produce from k. Answer 2.6 days