Chemistry
Chemistry, 26.11.2020 14:00, Jasten

47. A substance has a half life of 3min. After 5 min, the count rate was observed to be 400 what was its
count rate at rate at zero time?
2

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47. A substance has a half life of 3min. After 5 min, the count rate was observed to be 400 what wa...

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