Phosphorus-32 is a commonly used radioactive nuclide in biochemical research,particularly in studies of nucleic acids. The half-life of phosphorus-32 is 14.3 days.What mass of phosphorus-32 is left from an original sample of 175 mg of Na332PO4after 47.2 days? Assume that the atomic mass of 32P is 32.0.

To determine the remaining mass of phosphorus-32 (\ce 32P) in an original sample after a certain…

Answered: Phosphorus-32 is a commonly used…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Technetium-99m (the ‘m’ means a ‘metastable’ or moderately stable species) is generated in nuclear reactors and shipped to hospitals for use in medical imaging. The radioisotope has a half-life of 6.01 h. If a 165 mg sample of technetium-99m is shipped from a nuclear reactor to a hospital two and a half hours away, what mass of technetium-99m will remain when it arrives at the hospital?
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Radon, one of the noble gases, is a decay product of uranium and is itself radioactive, with a half-life of 3.8 days3.8 days. As a heavy gas, radon can accumulate in low areas such as basements and crawl spaces. Consequently, radon is considered a significant source of air pollution and radiation exposure and, according to the EPA, is the second most frequent cause of lung cancer in the United States. Write the nuclear equation for the alpha decay of Rn‑222. nuclear equation:
Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The half-life of phosphorus-32 is 14.3 days. What mass of phosphorus-32, in milligrams, is left from an original sample of 175 mg of Na 32PO, after 31.1 days? Assume that the atomic mass of 32P is 32.0.
Phosphorus-32 is a commonly used radioactive nuclide in biochemical research, particularly in studies of nucleic acids. The half-life of phosphorus-32 is 14.3 days. What mass of phosphorus-32, in milligrams, is left from an original sample of 175 mg of Na₃³²PO₄ after 35.5 days? Assume that the atomic mass of ³²P is 32.0.
The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The half-life of phosphorus-32 is 14.3 days. If you begin with 33.8 mg of this isotope, what mass remains after 20.6 days have passed? mg
7. The radioactive nuclide 55Co has a half-life of 17.5 hours. What mass of Co remains from a 0.0100 gram sample after 24.0 hours have elapsed?
Tritium H-3 has a half-life of 12.3 years. If a sample of 3 g of H-3 is produced, what will be the mass of tritium remaining after 24.6 years? (Recall N(remaining) = N(original) (1/2)^t , where N(remaining) is the remaining amount of a radioactive substance, N(original) is the original amount of the radioactive substance and t is the number of 1/2 lives).

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