What is the half life decay rate formula?
If we start from an initial concentration of
Therefore, the first half-life is written as
To find further half-lives, keep halving the concentration
#[A] = [A]_0cdot1/2cdot1/2cdotcdotcdot#
If we want to determine the number of half-lives
So, we could write this in a more convenient form as
Or, in a more universal form, since