What is the half-life of a medication for which only 12.5% remains after 24 hours?
A)4 hours
B)8 hours
C)16 hours
D)None of the above

Question

Quizplus · Accepted Answer

The half-life is the time it takes for the concentration of a substance to reduce to half its initial amount. If only 12.5% remains after 24 hours, it means the substance has gone through three half-lives (100% to 50% to 25% to 12.5%). Therefore, 24 hours divided by 3 half-lives equals 8 hours per half-life.

What Is the Half-Life of a Medication for Which Only