The half life of a substance is 44 years If there are 280 mg

The half life of a substance is 44 years. If there are 280 mg present now, how much will remain in 62 years? In 62 years, there will be mg remaining. If necessary, round the final answer to two decimal places. Do not round until the final answer.

Solution

We have to use the following formula here

A=A₀(1/2)^t/h

h is the half life

A₀ is the initial value which is 280 mg here

A=280(1/2)^62/44

A=105.43mg