You can find the natural logarithm on a scientific calculator where it will be labelled 'ln.'. The natural logarithm (ln) is a mathematical function that is the inverse to the exponential (e) function.
Mathematically, the half life can be written in terms of the decay rate: Half-life = - ln(2) / k. The formula is: T1/2 = t / Today, there are computer programs that will allow the numbers to be plugged in and the half-life result returned. The formula for calculation of half-life (T1/2) requires the knowledge of the initial concentration (C1), and the subsequent concentration (C2) obtained an amount of time later (t). How do you calculate half life in chemistry?
For example, the half-life of Uranium-238 is 4.46 billion years. Usually this is the radio-active decay of a specific atomic weight of an element. a formula created by Otrava of The Sisterhood which extends their lives, but with the side effect of sleeping. The half-life is the length of time that it takes for half of an initial sample to undergo a change. Any items left on the ground will be lost.
