A living tree contains 14C (half-life, 5730 years) and has a specific activity of 750 counts per hour. A wooden artifact recovered from an archeological site gives a count of 190 counts per hour. The age of this artifact is most nearly

Q: The half-ife for a particular radioisotope cannot be determined directly from the rate constant for…

A: The given statement is false .

Q: The 14C radioactivity in a sample of fabric claimed to be from an archaeological site is measured as…

A: The objective of this question is to determine the age of a fabric sample from an archaeological…

Q: 19. The half-life of carbon-14 is 5730 years. A plant fell into a tar pit 18,400 years ago before…

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Q: O 137 yrs O 173 yrs O 371 yrs O 317 yrs

A:

Q: The carbon-14 activity of some ancient Peruvian corn was found to be 10 disintegrations per minute…

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Q: Halfnum-172 (172Hf) has a half- life of 1.87 years. How much is left of a 100 mg sample after 5…

A:

Q: 1. A 20 mg sample of a pesticide has a half-life to 25 years. How long would it take to reduce the…

A:

Q: For a radioisotope where k=1.5x10-4yr-1, how old is a sample when only 10% remains? 15,000 years…

A: The details solution for this is provided below in attach image.

Q: A shell fossil that originally contained 100 mg of carbon-14 non contains 75 mg of the isotope.…

A: Initial amount, [A]0 = 100 mg  Final amount, [A] = 75 mg  Half-life, t1/2 = 5570 years

Q: 1. A sample of a funeral shroud taken from an ancient Egyptian tomb is found to have C-14 activity…

A: Carbon-14, or C-14, is a type of carbon found in living things. When a living organism dies, the…

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

A: Given,

Q: If you have a sample of radioactive material that weighs 2 grams, and only 1 gram is left that is…

A: Initial nuclei = 2 grams. Reduced nuclei = 1 grams. Time = 5 years. Half life time of material = ?

Q: 11. Using the data below, draw a graph of percent remaining (y-axis) vs. time (x-axis) for a…

A: We have to plot a graph of the percent remaining(Y-axis) and time, years (X-axis) and then solve for…

Q: Which statement accurately summarizes why radiocarbon dating could be used for some samples but not…

A: Radiocarbon dating could be used for some samples but not others beacuse of:

Q: Chemistry A moisture density guage has radioactive source containing the isotope cs-137 has half…

A: cs-137 has a half life of 30.17 years. The initial activity of the radioactive source is 8…

Q: A substance has a half-life of two days.  If 10 days have passed, how many half-lives has the…

A: Half life means the time in which amount of substance become half of its initial value

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, how old is a dress that was found to have a specific…

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Q: Fluorine-18, which has a half-life of 110 minmin, is used in PET scans. 1) If 105. mgmg of…

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Q: 2. Create a graph that shows what mass of fermium-252 remains after each of its first five…

A: How much of the original isotope remains after a certain interval of time can be calculated using…

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

A:

Q: A wooden artifact from a Chinese temple has a ¹4C activity of 24.9 counts per minute as compared…

A: we have to calculate the age of the sample of wooden artifact

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 artifact emits 11.1 beta particles per minute via the radioactive decay of ¹4C: 14 14 0 C…

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Q: Decide whether each of the following statements makes sense (or is clearly true) or does not make…

A: Half life time of any compound means the time required for a compound to be decayed to its half of…

Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 41.7% as…

A: Given, half life of C14 = 5730 yr

Q: wooden object from a burial mound is tested for 14C content, and is found to have an activity that…

A: Concept is based from nuclear chemistry

Q: sample A B C D symbol 95 41 75 34 Nb 18 9 radionuclide Se 55 26 the F Fe half-life 35.0 days 120.…

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: 56FE + ža on + 2Fe

A:

Q: The following isotopes (listed with their half-lives) have been used in the medical and biological…

A: Activity of any radioactive reactant is given by  Activity = number of particles X decay rate…

Q: A sample of wood from an Egyptian mummy case has a specific activity of 4.71 d/min g. How old is the…

A:

Q: The 14C radioactivity in a sample of fabric claimed to be from an archaeological site is measured as…

A: The objective of this question is to determine the age of a fabric sample from an archaeological…

Q: 20. At the time an item was produced, 0.01 of the carbon it contained was carbon-14, a radioisotope…

A: Solution

Q: . If the half-life of a radioisotope is 3

A: Half life (t1/2 or t50%) :  The time required to consume half of the initial reactant is called "…

Q: 2 Fe* (aq) + Ni (s) →2 Fe2* (aq) + Ni²* (aq) Which of the following statements are correct? Choose…

A: We will choose all correct statement

Q: What is a radioisotope and explain the term ‘half-life’? Calculate what fraction of a radioisotope…

A: Radioisotope are the radioactive isotope of an Elements  or it can also be defined as the atoms that…

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

A: