Ch.10 - Acid-Base TitrationsWorksheetSee all chapters
All Chapters
Ch.1 - Chemical Measurements
Ch.2 - Tools of the Trade
Ch.3 - Experimental Error
Ch.4 + 5 - Statistics, Quality Assurance and Calibration Methods
Ch.6 - Chemical Equilibrium
Ch.7 - Activity and the Systematic Treatment of Equilibrium
Ch.8 - Monoprotic Acid-Base Equilibria
Ch.9 - Polyprotic Acid-Base Equilibria
Ch.10 - Acid-Base Titrations
Ch.11 - EDTA Titrations
Ch.12 - Advanced Topics in Equilibrium
Ch.13 - Fundamentals of Electrochemistry
Ch.14 - Electrodes and Potentiometry
Ch.15 - Redox Titrations
Ch.16 - Electroanalytical Techniques
Ch.17 - Fundamentals of Spectrophotometry
BONUS: Chemical Kinetics
Sections
Strong Acid-Strong Base Titrations
Weak Acid-Strong Base Titrations
Weak Base-Strong Acid Titrations
Diprotic Acid Titrations
Polyprotic Titrations

These types of titrations revolve around the three or more Ka values of the polyprotic acid. 

Polyprotic Acid Titrations

Concept #1: Triprotic acids are the most commonly used polyprotic acids and revolve around 3 equivalence points and equivalence volumes. 

 

 

Concept #2: Before the first equivalence point has been reached we have the formation of a buffer region. 

Concept #3: At the first equivalence point we now have an excess of the first intermediate form for the polyprotic acid. 

Concept #4: Before the second equivalence point has been reached we have the formation of another buffer region. 

Concept #5: At the second equivalence point we now have an excess of the second intermediate form for the polyprotic acid. 

Concept #6: After the second equivalence point there is an excess of the strong base and the basic form of the polyprotic acid.