The most effective way to determine the rate of an inorganic chemical reaction involving two or more reactants, when one or more of the reactants is in excess, is to use the method of initial rates. This method involves measuring the initial rate of the reaction under different initial concentrations of the reactants and then analyzing the data to determine the rate law and rate constant.Here are the steps to follow:1. Prepare a series of experiments where the concentration of the reactant in excess is kept constant, while the concentration of the other reactant s is varied.2. Measure the initial rate of the reaction for each experiment. This can be done by monitoring the concentration of one of the reactants or products over time, and then determining the slope of the concentration vs. time plot at the beginning of the reaction when the reaction rate is the highest .3. Analyze the data to determine the order of the reaction with respect to each reactant. This can be done by plotting the initial rate of the reaction as a function of the initial concentration of each reactant and observing the relationship between them. If the plot is linear, the reaction is first order with respect to that reactant. If the plot is a parabola, the reaction is second order with respect to that reactant.4. Determine the rate law for the reaction by combining the orders of the reaction with respect to each reactant. The rate law will have the form: rate = k[A]^m[B]^n, where k is the rate constant, [A] and [B] are the concentrations of the reactants, and m and n are the orders of the reaction with respect to each reactant.5. Calculate the rate constant k by using the rate law and the initial rate data from one of the experiments.Once you have determined the rate law and rate constant, you can use this information to predict the rate of the reaction under different conditions and to better understand the reaction mechanism.