Chapter 11, Problem 11.19P

Interpretation Introduction

Interpretation:

The general appearance of the curve for the titration of weak diprotic acid with $NaOH$ has to be sketched.  The chemistry involves in governing the $pH$ in each of the four distinct regions of the curve has to be explained.

Concept introduction:

Acid-base titration is titration between acid and base. It is also known as neutralization reaction.

There are primarily four types of acid-base titrations –

• Strong base vs strong acid
• Strong base vs weak acid
• Weak base vs strong acid
• Weak base vs weak acid

Equivalence point ensures the titration reaction becomes completed and at this point the number of moles of titrant and the number of moles of analyte becomes equal.

Titration involving diprotic acids show two equivalence points as there are two protons and the protons are abstracted by base at different rates of reaction.