A dinosaur remain has a C-14 isotope and has a half-life of 5,715 years. The activity of this is 0.415 Bq as compared with an activity of 32.5 counts per minute of zero age. How old was the dinosaur?

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A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For a…

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…

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Q: A wooden artifact from an Indian temple has a 14C activity of 42 counts per minute as compared with…

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Q: In a sample of a radioactive isotope, 20.0 % has decayed after 16.0 days. Calculate the half-life of…

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Q: An archeological sample was predicted to be 9,415 years old. If the C-14 measured at present in the…

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

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Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 35.2% as…

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Q: A 1.800 gram sample of carbon taken from an artifact found in cave has a carbon-14 activity of 10.80…

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Q: In order to investigate the age of a mineral sample believed to be millions of years old, which…

A: Please find your solution below : Isotopes are defined as the members of family of same element that…

Q: Radium-223 decays with a half-life of 11.4 days. How long will it take for a 0.240 mol sample of…

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Q: A wooden artifact is burned and found to contain 21 g of carbon. The 14C activity of the sample is…

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Q: The half-life of a radioactive sample is 60.0 y. If the sample weighs 0.893 g initially, how much…

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Q: The half life for the decay of carbon-14 is 5.73 × 10° years. Suppose the activity due to the…

A: Given: The half-life for the decay of carbon= 5.73×103 years The activity of fresh wood sample= 99…

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Q: A volcanic eruption melts a large chunk of rock, and all gases are expelled. After cooling, argon-40…

A: Half-life of potassium-40 = 1.25 x 109 year A = The final amount of 40 K left = 1.38 mmol  A0 =…