Chapter 17, Problem 17.91SP

Interpretation Introduction

(a)

Interpretation:

The strongest acid should be identified.

Concept introduction:

Titration is a process that determines the concentration of solution by known volume to react with a standard solution of another substance.

titration curve is a plot of pH of solution versus volume of titrant. The shape of titration curve identifies the equivalence point in titration.

The point at which equivalent quantity of acid and base have been mixed together is called equivalent point. at equivalence point depends upon the relative strength of acids or bases.

is defined as the acid dissociation constant in conjugate acid-base pairs. is defined as the base ionization constant in acid-base pairs. is the equilibrium constant for water. At is equal to

The expression for relation between and is as follows:

Rearrange above equation for

Rearrange above equation for

At is equal to the equation will be modified as follows:

Interpretation Introduction

(b)

Interpretation:

The weakest acid should be identified.

Concept introduction:

Titration is a process that determines the concentration of solution by known volume to react with a standard solution of another substance.

titration curve is a plot of pH of solution versus volume of titrant. The shape of titration curve identifies the equivalence point in titration.

The point at which equivalent quantity of acid and base have been mixed together is called equivalent point. at equivalence point depends upon the relative strength of acids or bases.

is defined as the acid dissociation constant in conjugate acid-base pairs. is defined as the base ionization constant in acid-base pairs. is the equilibrium constant for water. At is equal to

The expression for relation between and is as follows:

Rearrange above equation for

Rearrange above equation for

At is equal to the equation will be modified as follows: