The amount of carbon-14 present in animal bones after t years is given by - 0.00012t A bone contains 19% of its carbon-14. How old is the bone? y = Y,e The age of the bone is years. (Round to the nearest year.)

Q: The radioactive substance cesium-137 has a half-life of 30 years. The amount A (t) (in grams) of a…

A: Given Time = 100 years

Q: A 3.6-kg laboratory animal receives a single dose of 8.92x10-4 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: A sample of carbon-14 has a mass of. 24.77 g. How much will be left after O half-lives? Type your…

A: Given the mass of carbon-14 sample = 24.77 g

Q: The weight Wt of radioactive uranium after t years is given by the formula Wt = W(0) × 2−0.0002t…

A: 1.

Q: 30% of a radioactive substance has decayed after 10years, what is its half-life?

A:

Q: eological site conta

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

Q: Q1: - Explain how you can carbon-date the age of a sample, and why is carbon dating unable to…

A: The carbon dating method can be used to determine the age of a sample. The age of carbon-based…

Q: A wooden boat discovered just south of the Great Pyramid in Egypt has a carbon-14 / carbon-12 ratio…

A: Age of wooden boat:Carbon-14 Half life is 5730 years.

Q: 18 Consider the following nuclear reaction e + v and determine the Q value or total energy released…

A: This question based on binding energy which is the amount of energy released during the formation of…

Q: The amount of carbon 14 remaining in a sample that originally contained A grams is given by C(t) =…

A: Given : Amount of carbon 14 at any time is given by, => C(t) = A X (0.999879)t…

Q: 82 joes ß decay. Wh

A:

Q: The weight Wt of radioactive uranium after t years is given by the formula Wt =  W0 × 2−0.0002…

A: Wt=Wo×2-0.0002tTo find the original weight, put t=0Therefore,Wt=Wo×2-0.0002×0=Wo×20=Wo

Q: On irradiation of a radioactive element with neutrons, a radiochemist discovered a new nuclide…

A:

Q: A fossil contain 23% of the carbon-14 that the organism contained when it was alive. Graphically…

A: Solution: The half life is defined as the amount of time the substance takes to decrease its…

Q: The proportion of carbon-14 still present in a sample after t years is  e−0.00012t.†Estimate the age…

A: The proportion of carbon-14 still present in a sample after t years is e-0.00012t   Ao is initial…

Q: Hydrogen-3 is radioactive and has a half life of 12.3 years. How long would it take a sample to…

A: All radioactive decay processes follows first order kinetics. Half life t12 is the time taken to…

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 × 10*° years. Suppose…

A:

Q: Assuming that the global amount of radiocarbon is constant, decaying Carbon-14 is repeatedly…

A: The carbon-14 nucleus is a radioactive nucleus and its converts into nitrogen-14 and beta particle.…

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: Be sure to answer all parts. A 3.6–kg laboratory animal receives a single dose of 8.76 × 10 Gy. (a)…

A:

Q: What is the isotope that is used in carbon dating? What is its half-life?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: An artifact originally had 16 grams of carbon-14 present. The decay model A = 16e 0.0001z" describes…

A:

Q: 9. Suppose a group of lab partners measured counts per seconds (cps) for carbon 14 ('“C) using a…

A:

Q: A fabric reiiant from a burial site has a 1"C/?C ratio of 0.735 of the original value. How old is…

A: As per regulations, only the first question can be answered.

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 new compound called corpium radioactively decays at the rate of -0.035% every year, if there is…

A:

Q: The proportion of carbon-14 still present in a sample after "t" years is e−0.00012t † Estimate the…

A: The decay of carbon-14 is governed by the first order kinetics. If A0 is the initial concentration…

Q: You have just discovered a fossil and tested it to discover it contains 35% of the original carbon…

A: Given data: Carbon decay = 35% Formula used: t=ln(NNo)(-0.693)t1/2

Q: 2. An archaeologist uncovers a wooden object at an archaeological site. The object is found to have…

A:

Q: Vhich of the following is the half-life ( in days Jof a radioisotope if it decays to 10.5% of its…

A:

Q: QUESTION 7 A radioactive isotope, Z-109, has a half-life of 62.3 years. How many years (y) will it…

A: First of all by using half life period, we can calculate the the rate constant k and then by using…

Q: A) how is it possible to date an age of a fossil through carbon 14? and what concepts and formulas…

A: Carbon 14 is a radio active isotope of carbon. The quantity of carbon 14 left in a fossil fuel can…

Q: A 3.6-kg laboratory animal receives a single dose of=8.92X10⁻⁴Gy. (a) How many rads did the animal…

A: Given data,Dose=8.92×10-4Gy Conversion factors; 1 rad = 0.01 Gy 1 Gy = 1J/Kg

Q: A 50 gram sample of a radioisotope undergoes 2 half-lives.  How many grams would remain at the end?

A:

Q: 6. Iridium is a radioactive elementused fortherapy in nucle armedicine. It decaysto% or 24, of its…

A: Answer: Nuclear reactions are first order reactions, therefore decay reaction of Ir will also be a…

Q: If you have 2.0 grams of a radioactive substance left after 5 half-lives, how much did you start…

A:

Q: A fabric remnant from a burial site has a 14C/2C ratio of 0.735 of the original value. How old is…

A:

Q: An archaeological bone sample originally contained 128 mg of 14C. The sample today has 16 mg of 14C.…

A:

Q: the carbon in a fossil was found to contain 12.5%  C-14 relative to living organism. what is the age…

A:

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: 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: A patient is given a 0.05 of 6 hours. How long will it be until mg dose of e which has a holf-life…

A:

Q: 1. The carbon from the heartwood of a giant sequoia tree gives 11 counts per minute per gram carbon…

A: The Initially or fresh is 15counts per min per g and at time t , it's 11counts per min per . With…

Q: A fabric remnant from a burial site has a 14C/1C ratio of 0.818 of the original value. How old is…

A: Since we know that the half life of 14C decay into 12C = 5730 years  And for the decay reactions,…

Q: Iodine-131 is radioactive and has a half life of 8.04 days. How long would it take a sample to decay…

A: The question is based on the concept of chemical kinetics. We have to calculate time taken for…

Q: A sample of bone is subjected to radiocarbon dating. The current decay rate observed for its…

A:

Q: ​Strontium-90 is a radioactive material that decays according to the function A(t)=A0e−0.0244t,…

A:

Q: Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr. (a) How many beta particles are…

A: Given: Half life of beta decay= 5.26 year Time= 600s Mass of Cobalt-60= 3.75 mg