1. Oxidation of FeCl2 with KClO3 in the presence of HCl is a third order reaction. If the time is expressed in minutes and the concentration in kmol/m3, then the rate constant of this reaction is approximately one. Calculate the concentration of FeCl2 1.2 hours after the start of the reaction, if the initial concentrations of all reactants are 0.1 kmol/m3.

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