The first-order decomposition of compound X has a half-life of
CHEMISTRY · Single correct · AP · Chemistry · Kinetics · Kinetics
Problem
The first-order decomposition of compound X has a half-life of 6.0min. After exactly three half-lives have elapsed, what fraction of the original sample of X remains?
(a) 0.250
(b) 0.333
(c) 0.125
(d) 0.405