ammonia is a common constituent of many natural waters andwastewaters. when water containing ammonia is treated at a watertreatment plant, the ammonia reacts with the disinfectanthypochlorous acid (HOCl) in solution to form monochloroamine(NH2Cl) as follows:
NH3 + HOCl > NH2Cl + H2O
The rate law for this reaction is:
d[NH3]/dt = -k[HOCl][NH3]
a) what is the reaction order with respect to NH3?
b) What order is this reactionoverall?
c) If the HOCl concentration isheld constant and equals10^-4 M, and the rate constant equals 5.1 x10^6 L/moles-s, calculate the time required to reduce theconcentration of NH3 to one half its original value.
