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4. A radioactive substance decays from 25.0 g to 12.0 g in 4 hours. Determine the half life of the substance. How long will i

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Answer #1

Here, No = 25gm H+ = 12gm t = 4 ho. Now, we have, and t = ? HE= No ( ) tin - 12 = 25 ( tin >> (15 3) is ( -) og () - tiny log

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