Problem:
A medical scintist has a 15-gram sample
of 1-131 and would like to its half-life, in
days. He also knows that k = 0.0856.
N = Noe-kt
No = 15 grams
N = 7.5 grams
k = 0.0856
t = ?
22
Find the half-life, in days, of 1-131 using the
information at the left. Round your answer to
the nearest tenth.
Enter the correct answer.
000
+?