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23-10-2020
Chemistry

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Sodium 24 has a half life of 15 hours , how many hours is three half lives

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23-10-2020

Answer:

Explanation:

So, Total amount of time = 3 × ( Half - life of Sodium - 24 ) = (3 × 15 h) (3 × 15 h) = 45 h. So, 45 h is three half - lives .

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