A wooden boat discovered just south of the Great Pyramid in Egypt has a carbon-14 / carbon-12 ratio that is 72.5% of that found in living organisms. How old is the boat?

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

A: percentage amount of C- 14 = 5.55% Age Of Human remain = to be calculated

Q: The carbon-14 decay rate of a sample obtained from a young tree is 17.2 disintegration per minutes…

A: Given : T1/2 = 5715 years.

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…

Q: A precursor of modern-day bison is Bison latifrons. A fossil found in North Dakota was dated with…

A: Given that : The half-life of 14C is 5730 years. The initial concentration of 14C is 100 %. Out of…

Q: 4 26Mg + 12 2a +

A: Given-> For balencing nuclear reaction there must be equal number of proton on each side also…

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: (28) An archaeologist claims that a bone in her collection is from a saber-toothed tiger that is…

A: Given that, for a carbon-14 The initial decay rate is -dNdt0 = 15.3 disintegrations per minute per…

Q: The carbon-14 activity in papyrus growing along the Nile River today is 231 decay events per…

A: Given data,Initial activity of C-14=231 decay events/KgFinal activity of C-14=140 decay…

Q: A discovery revealed a parchment fragment that had about 64% as much 14C radioactivity as does plant…

A: Answer: This question is based on the radioactive decay and all the radioactive decay reactions are…

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 sample of lead isotope Pb decays by emitting an alpha particle to form the nuclide W. If the half-…

A: Radioactive Decay is the process where an unstable atomic nucleus loses energy in the form of…

Q: A 76 mg sample of a radioactive nuclide is administered to a patient to obtain an image of her…

A: Given : Half life=12 hr Initial amount, [A]o=76 mg The final amount, [A]=? Time, t=3.5 days= 3.5 x…

Q: a wooden object from the site of an ancient temple has a carbon-14 activity of 10 counts/min…

A:

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

A:

Q: a) If an object that was once living died 35,500 years ago, what is the exact percentage of the 14C…

A: a. The half life equation for decay is shown below: Where; Cfinal represents final concentration…

Q: Identical amounts of two different nuclides, an alpha emitter and a gamma emitter, with roughly…

A: Identical amounts of two different nuclides, an alpha emitter and a gamma emitter, with roughly…

Q: A 3.6-kg laboratory animal receives a single dose of 8.92×10-4 Gy. (a) How many rads did the animal…

A: (a) Given data contains, Mass of laboratory animal is 3.6-kg. Dose received is 8.92x10-4 Gy.

Q: Why can’t radiocarbon dating be used to determine the age of an artifact that is over 50,000 years…

A: The reason why radiocarbon dating could not be used to obtain the age of an artifact which is 50,000…

Q: An ancient wood sample is known to be 2500 years old. a. Knowing that the half-life of carbon is…

A:

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

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

A:

Q: The ratio of carbon-14 to carbon-12 in a piece of wood discovered in a cave is R = 1/915. Estimate…

A:

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: A layer of peat beneath the glacial sediments of the last ice age has a carbon-14 / carbon-12 ratio…

A: Given,Carbon-14 / carbon-12 ratio is 22.8%It is first order decay

Q: A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater…

A: The radioactive decay follows first-order kinetics. We know that the half-life of carbon-14 is 5730…

Q: What is the age in years of mummified primate skin that contains 6.25% of the original quantity of…

A: We have to predict the age in years.

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

A:

Q: The carbon-14 decay rate of a sample obtained from a young tree is 0.252 disintegration per second…

A: Decay process is a first order reaction. Therefore we have to put the integrated rate law for first…

Q: 7200 years ago, the ratio of 14C to 12C in the atmosphere was 10% higher than it is today. A piece…

A: Given: The ratio of 14C to 12C in the atmosphere was 10% higher than that of today value before 7200…

Q: The carbon−14 decay rate of a sample obtained from a young tree is 0.250 disintegration per second…

A:

Q: Is Radiometric dating based on the decay of radioactive isotopes over time?

A: Radiometric dating is used by geologists to find the age of old samples like trees, rocks. It is…

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: A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater…

A: The radioactive decay follows first-order kinetics. We know that the half-life of carbon-14 is 5730…

Q: 1. If the amount of the parent isotope in the original sample of a rock had been 48 grams, about how…

A:

Q: 1) Phosphorus-32 has a half-life of 14.0  days . Starting with 4.00  g  of  32P , how many grams…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What is the estimated the age of an artifact that has 1/16 of the amount of carbon-14(relative to…

A: Given :  Half life of C -14 isotope = 5730 years  Amount of C-14(relative to C-12) in artifact =…

Q: If the half-life of a radioactive isotope is 32 days, how many half-lives must pass before a 3.0…

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

Q: For a radioisotope where k=1.7x10-4yr1, how old is a sample when only 10% remains? O 5,900 years 590…

A: The radioactive compound emits continuously α, β, and γ particles and converted to a stable nucleus.…

Q: Carbon-14 occurs in living organisms with a fixed ratio to nonradioactive carbon-12. After a plant…

A: Radioactive decay follows first order kinetics.  We know that : k = 0.693/t0.5 ...(1)  Here, t0.5 =…

Q: Carbon extracted from an ancient skull contained only one-fifth as much 14C as carbon extracted from…

A:

Q: What is the half-live of a radioactive isotope if it takes 6.2 days for a 72g sample to decay to…

A: Given, 72 g to decay to 18 g. t = 6.2 days To calculate the half-life.

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

A:

Q: Phosphorus-30, which has a half-life of 150 seconds, decays by positron emission. How long will it…

A: Nuclear reactions or nuclear decay follows first order kinetics. Given: Half life t1/2 = 150.…

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

A: decay constant , k = 0.693t12 = 0.6936 hour-1  integrated rate equation for radio active decay (…

Q: If a sample of radioactive material undergoes 1.0134E13 decay events in 83 seconds, how many Curies…

A: Solution: We have decay of given radioactive sample is 1.0134E13 in 83 seconds. By the definition we…

Q: (28) An archaeologist claims that a bone in her collection is from a saber-toothed tiger that is…

A: we have to calculate decay rate of bone

Q: 85.0-kg person is exposed to 419 rad of radiation. How many joules did this person absorb?

A: