⚠️Our tutors found the solution shown to be helpful for the problem you're searching for. We don't have the exact solution yet.
Another radioisotope of iodine, 131I, is also used to study thyroid function (see Follow-up Problem 16.7A). A patient is given a sample that is 1.7 x 10−4 M 131I. If the half-life is 8.04 days, what fraction of the radioactivity remains after 30. days?
Follow-up Problem 16.7A. Iodine-123 is used to study thyroid gland function. This radioactive isotope
breaks down in a first-order process with a half-life of 13.1 h. What is the rate constant
for the process?