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You look for two reactions where there is a difference in concentrations for just one of the reactants, then use this and the change in the rate to get the order of that reactant. Repeat this to get the orders of the others reactants. Once you have all the orders, you can pick any trial you want, plug in all the numbers you know, and solve for k
Choose two experiments (rows) in which all but one reactant has the same concentration and the other changes. Compare the change in the reactant concentration to the change in the rate. If the reactant concentration doubled and the rate doubled, this must be first order for that reactant (ie, if the amount the rate increased = amount the reactant increased). If the reactant concentration doubled and the rate increased by a factor of 4, this is second order (that is, change in reactant conc squared = change in rate). If the reactant concentration changed and the rate didn't change, it's zero order for that reactant.
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