Question

a 48 gram sample of a substance that’s used for drug research has a k value of 0.1325 .. find the substance half life in days round your answer to the nearest tenth

Answer 1

the answer you're looking for is 5.2

works on Plato

Answer 2

Half life of sample = 5.23 days

Explanation:

We have half life of a radio active material

`t_(1/2)=(ln2)/(k)`

Decay constant is given k = 0.1325 day⁻¹

`t_(1/2)=(ln2)/(0.1325)=5.23\boldsymbol{\texttt{ days}}`

Half life of sample = 5.23 days