CHEM 1AA3 Lecture Notes - Lecture 12: Rate Equation, Stoichiometry, Molecularity

• School: McMaster University
• Department: Chemistry
• Course: CHEM 1AA3
• Professor: Pippa Lock

Document Summary

If you were to calculate change in reactants or products over time without considering the stoichiometry, you would be calculating the rate of disappearance of reactants and rate of formation of products. Kinetics: the integrated rate law for a zero order reaction simply gives us the concentration of reactant vs. time graph, the y-intercept of this graph is the [a]o. Methods to check if it is a zero-order reaction: integrated rate law for zero-order ([a]t = -kt + [a]o, see if the rate of reaction changes as reactants are consumed/products are formed. If rate does not change throughout the reaction, it is not dependent on the concentrations of the reactants, hence it is zero-order. If there are values of [a] and time given, such as: you can check if it is 1st order in respect to a by plugging the values into the integrated law for.