If an ancient piece of wood is found to have one-sixteenth the original amount of carbon-14 in it, then how old is it if the half-life of this isotope in 5,730 years?

Q: Bandages can be sterilized by exposure to gamma radiation from cobalt-60, which has ahalf-life of…

A: Given: The mass of the sample is 5.27 Y. The half-life of cobalt-60 is 5.27 y.

Q: The half-life of Phosphorus-32 is 14.3 days. If you start with 100 grams of it, how long will it…

A: Half life of a first order reaction is given by , t1/2=0.693k Write the expression for first order…

Q: 1. A substance has a mass of 5 grams after decaying for 100 minutes. What was the mass of the…

A: Given that: Mass of substance left after decaying = 5 g Total time for decaying of substance = 100…

Q: (11) Lead-211 is a radioactive isotope with a half-life of 36.1 minutes. How long will it take for…

A:

Q: The half life of an isotope is 43 seconds.  How long does it take 100.00 g of that isotope to decay…

A: Given that  Initially weight of isotope sample = 100.0 gm initially number of atoms of isotope No=…

Q: Suppose the amount of a certain radioactive substance in a sample decays from 4.60 mg to 1.90 mg…

A:

Q: a radioactive isotope of hydrogen, has a half-life of 12.4 years. Of an initial sample of 33 grams,…

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.

Q: An old piece of wood has a carbon-14 content of 0.0156 times that 14 is the age of the old wood if…

A: We will use first order kinetics formula

Q: Technicium-104 has a half-life of 18 minutes.If the initial mass is 100.0g,how much remains after 90…

A:

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: After 20 years, only 3.125% of the initial amount of radioactive isotope is left. What is the…

A:

Q: The isotope nickel-63 has a half-life of 100 years. If a tested sample has five grams of nickel-63…

A:

Q: After 60 days, 10 grams of radioactive isotope remains from an original 27 g sample. What is the…

A: Given,

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

A:

Q: 1.) Carbon-14 has a half-life of 5600 years. If you had a sample of 100% carbon-14, how much would…

A: Given, carbon-14 half life with 100 % carbon-14 sample.we are asked to calculate the amount of…

Q: After 119 days have elapsed, 1/12 of a radioisotope sample remains undecayed. What is the half-life…

A: Amount of radioisotopes remaining = 112 of the initial amount Number of days taken for the decay =…

Q: a 45.91 mg sample of a pure radioisotope has a half-life of 52 days, what will be the mass of the…

A: Given 45.91 mg sample of a pure radioisotope has a half-life of 52 day mass of the original…

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: 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: 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: Radioactive Decay The half-life of radium-226 is 1590 years. (a) If a sample has a mass of 150 mg,…

A: Radioactive decays follow first order kinetics. k=0.693t1/2 Calculate k. k=0.6931590 years…

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

A:

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

A: The nuclear reactions are a type of chemical processes which lead to the formation of some new…

Q: A certain radioisotope has a half-life of 6.58 days. What percentage of an initial sample of this…

A:

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: if 8.000 grams of U-234 are sealed in a container and then opened many years later -- how much time…

A:

Q: After 60 days, 10 grams of radioactive isotope remains from an original 80 g sample. What is the…

A: Law of radioactive decay: Law of radioactive decay relates the amount radioactive substance…

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

A:

Q: percentage of his original carbon-14

A:

Q: After 19 days have elapsed, 1/21 of a radioisotope sample remains undecayed. What is the half-life…

A:

Q: A rock is analyzed in the laboratory for radiometric dating and found to contain 1/8 parent atoms…

A: Any process that occurs by radioactive decay follows first-order kinetics. The equation used to…

Q: The isotope cesium-137 has a half-life of 29.75 years. How long will it take a 100 gram sample of…

A: Radioactive decay reactions are first order reactions. The calculation can be done using first order…

Q: Carbon-14 dating is used to find the age of ancient objects. The half-life of Carbon-14 is 5730…

A: Given : Half life of Carbon-14 = 5730 years  And the piece of clay pot has undergone 1.5 half lives.…

Q: Radioactive Decay of Carbon-14 100% 75% Amount of carbon- 14 50%- 25%- 12.5% 0. 5730 10,740 16,110…

A: Half life is the time taken for Decomposition of 50% of the the total amount of the substance.

Q: Carbon dating can be applied to organic materials up to 5.0 x 10* years old. What percentage of the…

A: Half life is 5730 year . It is given that we want to measure 50000 year .  So time of half life to…

Q: A theoretical isotope known as Du-30 has a half life of 6 months. The amount decreased from 1.50M to…

A:

Q: After 60 days, 10 grams of radioactive isotope remains from an original 38 g sample. What is the…

A:

Q: The 175Pt isotope has a half-life of 2.53 seconds. What percentage of the original quantity of 175Pt…

A: The radio active decay follows first order kinetics. The half life t1/2 and rate constant K of a…

Q: The half life of radium-226, the first radioactive element discovered, is 1,620 years. If a sample…

A: Radioactive reactions are of first order. The relationship between half life t1/2 and rate constant…

Q: How long will it take a radioactive sample of iodine-131 (half-life 8.07 d) to lose

A: The spontaneous disintegration of alpha, beta and gamma radiations by a substance irrespective of…

Q: After 119 days have elapsed, 1/21 of a radioisotope sample remains undecayed. What is the half-life…

A: Suppose the initial amount of sample be Ao After 119 days, amount remaining, A = (1/21) Ao The…

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

A:

Q: The half-life of carbon-14 is about 5730 years. If an ancient leather strap is about 11,500 years…

A:

Q: A sample of Thorium-228 has a half-life of 1.9116 years. What percent of Thorium-228 remains after…

A: Applying basic concept of radioactivity.

Q: what is it's half-life?

A: