A chemist wishing to do an experiment requiring 47Ca2+ (half-life = 4.5 days) needs 5.0 µg of the nuclide. What mass of 47CaCO3 must be ordered if it takes 48 h for delivery from the supplier? Assume that the atomic mass of 47Ca is 47.0.
Answer to relevant QuestionsExplain the theory behind carbon-14 dating. What assumptions must be made and what problems arise when using carbon-14 dating? A proposed system for storing nuclear wastes involves storing the radioactive material in caves or deep mine shafts. One of the most toxic nuclides that must be disposed of is plutonium-239, which is produced in breeder ...Calculate the binding energy in J/nucleon for carbon-12 (atomic mass 12.00000) and uranium-235 (atomic mass 235.0439). The atomic mass of 11H is 1.00782 amu, and the mass of a neutron is 1.00866 amu. The most stable nucleus ...Why are elevated temperatures necessary to initiate fusion reactions but not fission reactions? Consider the following graph of binding energy per nucleon as a function of mass number. a. What does this graph tell us about the relative halflives of the nuclides? Explain your answer. b. Which nuclide shown is the most ...
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