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Answer to Question #249290 in Physical Chemistry for Yts
Question #249290
A radioactive sample with a half-life of 3hrs contains 25-mCi radioactivity. The radioactivity of the sample after 9 days days would be?
Expert's answer
9 × 24 = 216hours
3hr =25mCi
216= ?
= 216× 25/3
= 1800mCi
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