A moon rock collected by a U.S. Apollo mission is estimated to be 4.30 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 206Pb in the rock, if it currently contains 1.325 g of 238U? The half-life of 238U is 4.47×109 years.

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Q: A laboratory investigation shows that a sample of uranium ore contains 5.66 mg of 92U and 2.56 mg of…

A: Given data:

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Q: 1. Calculating the energy liberated during the fission process? In + 23U 11Cs + 33Rb + 3(3n)

A: Energy liberated during nuclear fission calculated as follows

Q: If 2.8x10-10% of the atoms of a radioactive isotope disintegrate in 1.0 yr, what is the decay…

A: As the radioactive decay is first order reaction, the expression is given as, Here,  N0 indicates…

Q: A sample of uranium ore contains 5.37 mg of U-238 and 2.52 mg of Pb-206. (a) Calculate the…

A: Given mass of U-238 = 0.00537 g Number of moles of U-238 = 0.00537/238 = 2.26 × 10-5 mol Given mass…

Q: Plutonium­239 is the fissionable isotope produced in breeder reactors; it is also produced in…

A: Nuclear  chemistry is the branch  of chemistry deals with the radioactivity , nuclear process and…

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Q: Enter your answer in the provided box. A rock sample originally contains 3.32 mg of 43°U. How much…

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Q: Carbon -14 has a half-life of 5.730 x 10 3 years.  If the original mass of the parent is 501.695 g,…

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Q: A sample of Uranium-234 has been decomposing. If the original mass of 234U is 2.57milligrams, how…

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Q: The half-life of tritium is 12.32 yrs. If 49.1 mg of tritium remains of a sample with an initial…

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Q: The half-life of 232Th is 1.4×10 yr. Find the number of disintegrations per hour emitted by 1.0 mol…

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Q: Nickel-63 undergoes beta decay to form copper-63. At time = 0, a closed vial contains 55.3 grams of…

A: The radioactive decay follows first order kinetics.The integrated rate law for the first order…

Q: A laboratory investigation shows that a sample of uranium ore contains 7.92 mg of 23892U (molar mass…

A:

Q: The half-life of Ga-67 is about three days. If only 12.5% of the original sample remains, the time…

A: The time at which reactant's amount is left half of the original amount is known as half-life. The…

Q: The half-life of tritium is 12.32 yrs.If 49.1 mg of tritium remains of a sample with an initial mass…

A: The question is based on the concept of chemical kinetics. we have to calculate how much time has…

Q: Part 1 The half-lives of 235U and 23$U are 7.04 x 10° years and 4.47 x 10° years, respectively, and…

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Q: You have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was…

A: The solution is given below -

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Q: The half life of 52Fe is 8.28 hours. Suppose we measure the activity of a sample containing 52Fe and…

A: Calculation of disintegration constant (λ):T1/2 of 52Fe is = 8.28 hours.

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A: During the nuclear reaction, energy produced is equal to the product of mass defect and square of…

Q: A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to…

A: To determine the age of the archaeological sample, we can use the formula for radioactive decay:

Q: An element Y was found by meteorologists inside a fossil and at present, there is 3.8g of it left.…

A: Given : initial amount = 30 g                Final amount = 3.8 g             Time taken = 45000…

Q: 0.132-g sample of Fe-29 (half-life is 44.5 days) is allowed to decay for 265 days. What quantity of…

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Q: After 31 years, what mass (in g) remains of a 45.0 g sample of a radioactive isotope with a…

A: Given, Half life (t1/2 )= 7.3 years time (t) = 31 years Number of radioactive atoms present…

Q: How much time in hours would it take for a 1.330 g sample of 233Pa to decay to a mass of 0.8628 g if…

A: Given, Half life = 5.1473 x 106 s Initial Mass of sample = 1.330 g  Time = ?

Q: If 2.8X10⁻¹⁰ % of the atoms of a radioactive isotope disin-tegrate in 1.0 yr, what is the decay…

A: Radioactive decay at a distinctive rate, irrespective of the chemical substance within which they…