Question

What is an example of a decay practice problem?

Answer 1

Suppose a sample has a half-life of `60` seconds. Then let's say `5` hours passed by. If we start with `[A]_0` initial concentration of the sample, what is the final concentration, `[A]`, expressed in terms of `[A]_0`?

You should get that since `300` half-lives passed, `[A] = (1/2)^(300)[A]_0`.