posted by court .
In the presence of a tungsten catalyst at high temperature, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature us 3.7x10^-6 mol. How long will it take for an ammonia concentration to drop from an initial concentration of 5 .0 x10^-4 M to 5.0x10^-5 M? What is the half life of the reaction under these conditions?
Write and balance the equation.
[A] = [Ao]-akt
[Ao] is the beginning cncn.
k is given
t is time.
a is the coefficient in the balanced equation.
t1/2 = [Ao]/2ak