Ask Question
9 January, 09:02

A 9 gram sample of a substance that's used for drug research has a K value of 0.1459

Find the substances half-life in days, and round answer to the nearest ten. (exponential decay)

+1
Answers (1)
  1. 9 January, 10:52
    0
    N = N0 e^ (-kt)

    for half life N/N0 = 1/2 and k = 0.1459

    1/2 = e^ (-0.1459t)

    => - 0.1459 t = ln (0.5)

    t = - ln (0.5) / 0.1459

    = 4.8 days
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A 9 gram sample of a substance that's used for drug research has a K value of 0.1459 Find the substances half-life in days, and round ...” in 📘 Mathematics 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