is the rate constant? (4) Suppose that a company wants to remove a pollutant X from a solution produced as a byproduct of an industrial process. Their research department finds a reaction X + A â Y + 2Z that can convert the pollutant into the harmless substances Y and Z. (a) Preliminary experiments indicate that the rate of the reaction only depends on the concentration of X and that the order with respect to X is either 2 or 3. To determine the order of the reaction, an experiment was performed in which the concentration of the product Z was followed as a function of time: t/min 0 3.22 6.58 10.02 13.91 /mmolL- 13.0 22.6 30.0 36.4 In this experiment, the initial concentration of X was 0.0400 mol L-. What is the order of the reaction and rate constant? (b) The industrial waste produced by this company contains X at a concentra- tion of 0.2 mol L- and is considered safe when this concentration drops below I μmo1 L-1. If the reaction conditions are more or less as given above, how long would the treatment of the industrial waste take? In your opinion, is this an accept- able length of time? (5) Isoxaflutole (denoted I in the table below) is a herbicide used to halt the growth of grass
