The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass

The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced to a mass of 3 mg.

What was the initial mass (in mg) of the sample?
What is the mass (in mg) 5 weeks after the start?
You may enter the exact value or round to 4 decimal places.


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