chemistry galf life ?
Consider the reaction with an initial concentration of Ao= 6.00Mand a half-life of 65.0 minutes.
If this reaction is zero order with respect to A, how many minutes will it take for the concentration of A to reach 0.504M?
Consider the reaction with an initial concentration of Ao= 6.00Mand a half-life of 65.0 minutes.
If this reaction is zero order with respect to A, how many minutes will it take for the concentration of A to reach 0.504M?
hcbiochem
The half-life of a zero-order reaction is related to the initial concentration and the rate constant, k, as:
t1/2 = [A]o/2k
So,
k = [A]/2(t1/2)
k = 6.00/2(65min) = 0.04615 M/min
Then, the integrated rate law for a zero-order reaction is:
[A] = -kt + [A]o
0.504 M = -0.04615 t + 6.00
t = 119 min