CHM 1311 Lecture Notes - Lecture 7: Hydronics, Solubility Equilibrium, Nitric Acid

• School: University of Ottawa
• Department: Chemistry
• Course: CHM 1311
• Professor: Matthew Lafreniere

Document Summary

Chemistry lecture 7 - principles of chemical equilibrium. Chemical equilibria that occurs in aqueous environments are particularly important to humans. In an aqueous solution, you can characterize species as: Major species: some species present at high concentration. Minor species: some species present at low concentration. Dominant equilibrium: the equilibrium that is most important in determining the equilibrium concentrations of major species in solution - dictates the equilibrium. W/ species dissolved in water, water is the major species (55moles/l) If we add salt to water, then we will generate water molecules and the ions (chapter 1) Kcl + h20 > k+ + cl- + h20. Solubility: amount of solute that dissolves that dissolves in solvent. Complexation: cations form chemical bonds w/ anions or neutral molecules that have lone pairs of electrons. If we add a strong acid to water, they completely dissolve and create hydronium ions: Hno3 (aq) + h2o (l) -> h30+ (aq) + no3- (aq)