Ask Question
7 June, 22:49

The half-life of phosphorus-32 is 14.30 days. how many milligrams of a 20.00 mg sample of phosphorus-32 will remain after 85.80 days?

+5
Answers (1)
  1. 8 June, 01:59
    0
    The amount of sample that is left after a certain period of time, given the half-life, h, can be calculated through the equation.

    A (t) = A (o) (1/2) ^ (t/d)

    where t is the certain period of time. Substituting the known values,

    A (t) = (20 mg) (1/2) ^ (85.80/14.30)

    Solving,

    A (t) = 0.3125 mg

    Hence, the answer is 0.3125 mg.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The half-life of phosphorus-32 is 14.30 days. how many milligrams of a 20.00 mg sample of phosphorus-32 will remain after 85.80 days? ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers