Question
Science task 120: A Western Australian senior class applies the information to a resources, distance or environmental investigation. A tracer starts at 0.24 mol and undergoes 4 half-lives of 7 minutes each. How much remains?
Select an option. Your answer will be checked instantly.
Correct Answer: C. 0.015
Explanation:
After 4 half-lives, amount=0.24000000000000002/2^4=0.015.
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