GCC Chemistry Department
Instructor - Christina Clark
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Lecture Notes

Practice      KEY
Dr Leedy's W/S     KEY




Chapter 14
Aqueous Equilibria:
Acids and Bases

Read Sections 14.1-14.16

The following is a brief summary only. 
You are still responsible for all material covered in class even if it is not mentioned here!


14.1 - Acid-Base Concepts: The Bronsted-Lowry Theory: Know how to identify a Bronsted-Lowry acid/base and its conjugate
          base/acid
14.2 - Acid Strength and Base Strength:  What are the six strong acids?  Strong bases?  What is the difference between a strong acid
          and a weakacid?  Base?  Know how to read table 15.1.  How do you write reactions of strong acid + strong base, strong acid +
          weak base, strong base + weak acid?  Which way does the equilibrium proceed?
14.3 - Hydrated Protons and Hydronium Ions:  What is the formula for hydronium ion?
14.4 - Dissociation of Water:  Write the reaction for the dissociation of water.  Compare the H3O+ to OH- concentrations for acidic,
          basic and neutral solutions.  What is Kw?
14.5 - The pH Scale:  How do you calculate pH and pOH?  How do you determine sig figs for pH?
14.6 - Measuring pH:  What is an indicator and how is it used?
14.7 - The pH in Solutions of Strong Acids and Strong Bases:  How do you calculate the pH of a solution of a strong acid?  A
           strong base?
14.8 - Equilibria in Solutions of Weak Acids:  What is the main difference between a strong acid and a weak acid?    How do you
          write Ka?  How do you calculate Ka?  Understand table 15.2.
14.9 - Calculating Equilibrium Concentrations in Solutions of Weak Acids: How do you calculate Ka and pH for a weak acid?
          What is an ICE table?  How do you use one to calculate concentrations? 
14.10 - Percent Dissociation in Solutions of Weak Acids:   How do you calculate % dissociation of weak acids?  Is this similar to the
          approximation method for dropping x?
14.11 - Polyprotic Acids:  Write all equilibrium reactions and expressions for a polyprotic acid.  Use the different Ka values to determine
           pH or an unknown.  Table 15.3 has some good information.
14.12 & 14.13 - Weak Bases and Relation Between Ka and Kb:  What is Kb and how do you write the equilibrium equation and
           expression for Kb?  Calculate pH and unknown concentrations using Kb.  How do you calculate Kb form Ka and vice-versa? 
           Table 15.4 has some good information.
14.14 - Acid-Base Properties of Salts:  What are salts that yield acidic solution?  Basic solutions?  How do you write an equation for 
           the salt + water?  How do you calculate pH and unknown concentrations for acidic salts and basic salts?  Understand table 15.5.
14.15 - Factor That Affect Acid Strength:  Know the factors that affect acid strength (bond strength, EN, size, etc.)
14.16 - Lewis Acids and Bases:  How do you identify a Lewis Acid?  A Lewis Base?


Christina Clark