Chapter 19, Problem 106CP

Interpretation Introduction

Interpretation:

Interpret the time it takes by the sample with half life 80.9 yrs to reduce by 87.5 %.

Concept Introduction:

The mass of isotope remaining after specified time can be identified through the below formula:

$\left({\text{N /N}}_{\text{0}}\right)\text{ = }{\left(\text{1 /2}\right)}^{\text{t /t half}}$

N is number of mole left after time t

N₀ is initial number of mole

T_{h a l f} is half life.