Question
Science task 90: A New South Wales senior class applies the information to a coastal community planning problem. A tracer starts at 0.10 mol and undergoes 2 half-lives of 2 minutes each. How much remains?
Select an option. Your answer will be checked instantly.
Correct Answer: D. 0.025
Explanation:
After 2 half-lives, amount=0.1/2^2=0.025.
Leave a Reply