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Sodium-24 Has a Half-Life of 15

Question 4

Multiple Choice

Sodium-24 has a half-life of 15.0 hours.Suppose you had a sample containing 0.010 moles of Na-24.How many hours would be required to reduce your sample to 6.25 *10-4 moles?


A) 120
B) 60
C) 45
D) 30

Correct Answer:

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