Page 1 of 1

15.27

Posted: Sat Mar 03, 2018 4:43 pm
by Rohan Chaudhari- 1K
How do you calculate the time it takes for something to get to 15% of its initial concetration and 1/9th of its initial condition if you are given only its half life?

Re: 15.27

Posted: Sat Mar 03, 2018 5:27 pm
by Luke Bricca 1H
You can assume that the initial concentration equals 1 and the final concentration you're looking for equals 0.15 when solving the half-life equation for time.

Re: 15.27

Posted: Sat Mar 03, 2018 5:33 pm
by Andres Reynoso 1J
Using the given half-life, we can use the formula to calculate the k value. From there, we can use the formula to calculate time. [A]t is the concentration remaining after time t.