Pretty sure it’s Mixture if I’m not wrong
Formula 1!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer: It takes 3.120 seconds for the concentration of A to decrease from 0.860 M to 0.260 M.
Explanation:
Integrated rate law for second order kinetics is given by:
k = rate constant = ![0.610M^{-1}s^{-1}](https://tex.z-dn.net/?f=0.610M%5E%7B-1%7Ds%5E%7B-1%7D)
= initial concentration = 0.860 M
a= concentration left after time t = 0.260 M
![t=3.120s](https://tex.z-dn.net/?f=t%3D3.120s)
Thus it takes 3.120 seconds for the concentration of A to decrease from 0.860 M to 0.260 M.