Question
Science task 110: A Victorian senior class applies the information to an energy-and-transport investigation. A tracer starts at 0.16 mol and undergoes 2 half-lives of 7 minutes each. How much remains?
Select an option. Your answer will be checked instantly.
Correct Answer: A. 0.04
Explanation:
After 2 half-lives, amount=0.16/2^2=0.04.
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