End point, stoichiometric point, and equilibrium point

[Chem_Mod]

Question: What is the difference between the end point, the stoichiometric point, and the equilibrium point, and how are they related to one another?

[Chem_Mod]

Answer: Stoichiometric point: # moles H3O+(OH-) added = # moles OH-(H3O+) in a sample at the stoichiometric point in the solution contains a salt in water. End point: [HIn] = [In-] the end point of a titration is defined as the point at which the concentrations of the acid and base forms of the indicator are equal. Use an indicator that has an end point within 1 pH unit of the stoichiometric point. There isn't really an equilibrium point. Instead, a reaction has reached equilibrium when there is no net change in the concentration of reactants and products.