Practice Problem 9

Acetaldehyde, CH₃CHO, decomposes by second-order kinetics with a rate constant of 0.334 M^-1s^-1 at 500°C.  Calculate the amount of time it would take for 80% of the acetaldehyde to decompose in a sample that has an initial concentration of 0.00750 M.

Answer

t = 1600 s