The half-life of carbon-14 is 5730 years. The wrapping of an Egyptian mummy gave off 3.8 counts per minute per gram of carbon. A piece of linen purchased today would give an activity of 15 counts per minute per gram of carbon. How old is the mummy? years old

Q: The half-life of bismuth-210, 210Bi, is 5 days.(a) If a sample has a mass of 200 mg, find the amount…

A: Solution-  (a)-The half life periods of Bismuth-210 is 5days.the rate of decay of any substance…

Q: Carbon-14 measurements on the linen wrappings from the Book of Isaiah on the Dead Sea Scrolls…

A: Given in the question, 79.5% of the carbon-14 is found in living tissue. Half life of C-14 = 5730…

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A: The radioactive decay law can be used to determine the time at which 66% nuclei are remining.

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Q: If two grams of a radioactive isotope has a half-life of twenty hours, the half-life of one gram of…

A: We will use first order intergrated rate equations and half life to answer this question.

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A: Given: The initial activity, (A0) = 1.14×106 Bq. The activity after 11.1 hrs, (A) =  6.60×105 Bq.…

Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 42.1% as…

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Q: If the half-life of 100.0 grams of a radioactive isotope is 8 years, how many grams will remain in…

A:

Q: If a rock contained 12.0 g of ⁴⁰K when the earth was formed 4.54 billion years ago and the half-life…

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Q: A patient is given 0.500 ug of technetium -99m, a radioactive isotope with a half-life of 6 hours.…

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Q: A radioactive sample contains 1.55 g of an isotope with a half-life of 3.8 days. What mass of the…

A: The process in which energy is lost by unstable atomic nucleus via radiation is known as radioactive…

Q: 1. A 1 kg mass of radioactive material was left to decay in a laboratory. After 12 years, the…

A:

Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 12.5% as…

A:

Q: 3. An archeologist unearths a bone sample and wants to know the age of the initial amount of…

A: Given:  Present amount of bone = 49 %  Half life = 5730 years

Q: 32) The charcoal from ashes found in a cave gave 3.34 14C counts per gram per minute. Wood from the…

A:

Q: A patient is given 0.050 ug of technetium-99m, a radioactive isotope with a half-life of about 6.0…

A: Given: Mass of technetium-99m = 0.050μg half life= 6.0 h Mass of technetium to decay= 1.0×10-3μg

Q: A small figure carved from wood, believed to predate the period of Roman occupation of the Middle…

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Q: Enter your answer in the provided box. A rock sample originally contains 3.32 mg of 43°U. How much…

A:

Q: Carbon -14 has a half-life of 5.730 x 10 3 years.  If the original mass of the parent is 501.695 g,…

A:

Q: A tiny piece of paper taken from the Dead Sea Scrolls has an activity of 10.8 disintegrations per…

A: Radioactive disintegration follows first order kinectics. Hence, the rate of decay can be followed…

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 patient receives 9.2 ng of a radioisotope with a half-life of 12 hours. How much will remain in…

A:

Q: about how much would have been left after three half-lives? A parent isotope has a half-life of 500…

A: Note : As per guidelines we can answer only the first question   The time it takes for the…

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: el The half-life of barium-131 is 12 days. How many grams remains after 60 days if the initial…

A: We have to predict the amount left after certain time.

Q: The radioactive nuclide 9Co has a half-life of 5.27 years. Calculate the mass of 2Co that remains…

A: We have to calculate the amount remaining after 1 year.

Q: Carbon-14 has a half-life of 5730 years, how old is a dress that was found to have a specific…

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Q: Carbon-14 Dating A wooden artifact from an ancient tomb contains 65% of the carbon-14 that is…

A: Given information is as follows; Half life = 5730 years Fraction remaining = 65% = 0.65 The given…

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: 26. Four hundred grams of a radioactive substance decays to 50.0 grams. If it has a half-life of…

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

A:

Q: A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to…

A: Given, The half life of 14C is 5715 yr. Activity of 14C is 11.6 disintegration per second Activity…

Q: A 60 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A: Given: Half-life = 12 hours Radioactivity follows first-order kinetics. First calculate the rate…

Q: Bismuth-210 is a beta emitter with a half-life of 5.0 days. If a sample contains 1.2 g of Bi-210…

A: Given data:

Q: After 40.0 days, how much Ac-225 remains if the starting mass was 94.0 g? Ac-225 has a half life of…

A:

Q: 10. The 14C content of an ancient piece of wood was found to be one-sixteenth of that in living…

A: The question is based on the concept of carbon dating. We have been given the fraction of carbon…

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

A: For each half life, the specimen decays half the amount of initial amount.

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: While exploring a coal mine, scientists found plant fossils which had been preserved by an…

A: Given: Amount of carbon-14 in fossil = 20 counts/min = Nf Amount of carbon-14 in living tissue = 160…

Q: carbon-14 activity

A: Given data, Basic equation is Ae = Ao x 0.5 (t / t1/2)   Therefore,

Q: If a rock contained 12.0 g of 4°K when the earth was formed 4.54 billion years ago and the half-life…

A:

Q: If you have 2.00 grams of a radioisotope, with a half-life of 5 days, how much of the isotope is…

A: Given;

Q: A radioactive isotope has a half-life of 84.5 minutes. How long will it take for the radiation from…

A: Half life t1/2 = 84.5 min = 5070 s

Q: 12. A year ago there were 4 grams of a radioactive substance. Now there are 3 grams. How much was…

A:

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 6.6 g remain. What is the original…

A: Radio active decay obeys first order kinetics. The expression for rate constant:   Half life of…

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

A:

Q: A 58 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A: