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The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 4 mg. What was...Asked by Taylor
The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced to a mass of 1 mg.
What was the initial mass (in mg) of the sample?
What is the mass 4 weeks after the start?
What was the initial mass (in mg) of the sample?
What is the mass 4 weeks after the start?
Answers
Answered by
R_scott
12 days is 3 half-lives ... so, 1/8 initial ... (1/2)^3 = 1/8
... initial is 8 mg
4 weeks is 7 half-lives ... 8 mg * (1/2)^7 = ?
... initial is 8 mg
4 weeks is 7 half-lives ... 8 mg * (1/2)^7 = ?