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i need help solving this. Can you guys show me how it's done. Radium226 decays by alpha emission to radon222, a noble gas.What volume of pure Radon 222 at 23oC and 785mmHg could be obtained from 543.0 mg of radium bromide,RaBr2
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The half life of a certain radioactive substance is 10 years. How long will it take for 18 gms of the substance to decay to 6 gms? A. 6 ln 10 years B. 10 ln 6 years C. 10 (ln 3)/(ln 6) years D. 18 ln 10 years E. 10 (ln 3)/(ln 2)
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Tritium, a radioactive isotope of hydrogen, has a halflife of 12.4 years. Of an initial sample of 69 grams, how much will remain after 75 years?
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If a 20 gram sample of a radioactive substance has a halflife of 6000 years, how many grams would be present after 18000 years?
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