In this lesson our instructor talks about acid-base chemistry. First he discusses quantifying acid-base strength, writing out acid-base equilibria and salts solutions. Then he talks about diprotic acids, polyprotic acids, Lewis acids, Lewis bases, molecular structure, and molecular acidity. He ends the lesson with a summary and two helpful sample problems. Acid-Base Chemistry Bronsted-Lowry acid-base chemistry involves a loss/gain of a proton to/from water. Conjugate pairs only differ by one proton and are inversely related in terms of acidity/basicity. Acidity and basicity can be quantified primarily via pH, Ka ,pKa and percent ionization. The structure of a molecule can have a significant impact on how acidic it can be. ICE tables are easily applied to an acid-base equilibrium situation.