shekinahconnoll9360 shekinahconnoll9360
  • 22-07-2017
  • Chemistry
contestada

What is the half-life of a 0.5 g sample of radioisotope that decayed to 0.125 g in 9.6 min?

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tc6898 tc6898
  • 27-07-2017
25% remaining = 2 half-lives have passed,
9.6 / 2 = 4.8 minutes
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