The rate of the reaction is first order in each reactant. At the 28degrees C the rate constant for the disappearance of H2S which is having 3.5 x 10-2M-1s-1.
Calculate the rate of formation of Cl- if at a given time the concentration of H2S is 2.0 x 10 -4 M and that of Cl2 is 4.5 x10 -2 M.