Finding Equilibrium Concentrations

We can divide these types of problems into two categories (1) finding equilibrium concentrations when we know the equilibrium constant and all but one of the equilibrium concentrations of the reactants and products, and (2) finding equilibrium 

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The problem asks for an equilibrium constant, which means we need to find equilibrium concentrations of the species involved in the solubility reaction. Use the seven-step strategy, which we present here without step numbers. 

Determining what mass will dissolve requires that we find equilibrium concentrations, so we apply our... 

To use equilibrium constants, we must express them in terms of the reactant and product concentrations. Our only guide is the law of mass action [Equation (14.2)], which is the general formula for finding equilibrium concentrations. However, because the concentrations of the reactants and products can be expressed in different units and because the reacting species are not always in the same phase, there may be more than one way to express the equilibrium constant for the same reaction. To begin with, we will consider reactions in which the reactants and products are in the same phase. 

Like the type of problem that involves finding K, the type that involves finding equilibrium concentrations (or pressures) has several variations. Sample Problem 17.5 is one variation, in which we know K and some of the equilibrium concentrations and must find another equilibrium concentration. 

Plan We construct a table to find equilibrium concentrations of all species and then use the equilibrium concentrations to calculate the equilibrium constant. 

Finding Equilibrium Concentrations from the Equilibrium Constant and All but One of the Equilibrium Concentrations of the Reactants and Products... 

Finding Equilibrium Concentrations from Initial Concentrations and the Equilibrium Constant... 

Finding Equilibrium Concentrations from Initial Concentrations and the Equilibrium Constant (14.8) Examples 14.9, 14.10 For Practice 14.9, 14.10 Exercises 53-58... 

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