A quantitative relationship, based on the conservation of mass, the proportion reacted, and the kinetics of a chemical reaction is presented. It is shown that this relationship follows from an integrated approach to the fundamental considerations of the conservation of mass/stoichiometry and kinetics which are normally considered at separate stages in the normal presentation sequence of a basic course in general chemistry. Fundamentally, the conventional solution to a representative general chemistry problem, which illustrates an application of the general principles of stoichiometry, is expressed in terms of the proportion reacted. Subsequently, the application of basic rate and/or kinetic considerations to this representative general chemistry problem, in the form of the proportioned reacted, is shown to result in a general purpose integrated equation. This complimentary approach is also illustrated as a learning tool in the construction and formulation of practice/study problems in general chemistry.