Science task 80: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.22 mol and undergoes 4 half-lives of 6 minutes each. How much remains?

Science task 80: An ACT senior class applies the information to a public-policy, planning or research investigation. A tracer starts at 0.22 mol and undergoes 4 half-lives of 6 minutes each. How much remains?

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