Question
Science task 110: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.10 mol and undergoes 2 half-lives of 8 minutes each. How much remains?
Select an option. Your answer will be checked instantly.
Correct Answer: B. 0.025
Explanation:
After 2 half-lives, amount=0.1/2^2=0.025.
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