Chapter 14, Problem 66QAP

Interpretation Introduction

(a)

Interpretation:

If the given statement is true or false needs to be determined.

The given net ionic equation shows the tiration of NaF versus ${\text{H}}_{\text{2}}{\text{SO}}_{\text{4}}$

Concept introduction:

Titration is to determine the quantitative information of the unknown sample when a known volume and concentration of reactant is utilized. It is usually an acid-base reaction. The unknown solution is the titrantand the known volume of solution is the titrant.

Interpretation Introduction

(b)

Interpretation:

If the given statement is true or false needs to be determined.

The given reaction is a reaction between a strong acid and base.

Concept introduction:

Titration is to determine the quantitative information of the unknown sample when a known volume and concentration of reactant is utilized. It is usually an acid-base

Interpretation Introduction

(c)

Interpretation:

If the given statement is true or false should be determined.

The solution acts as buffer at equivalnce point.

Concept introduction:

Titration is to determine the quantitative information of the unknown sample when a known volume and concentration of reactant is utilized. It is usually an acid-base reaction. The unknown solution is the titrantand the known volume of solution is the titrant. At the equivalence point, the color of the indicator changes.

Interpretation Introduction

(d)

Interpretation:

If the given statement is true or false should be determined.

The pH of the solution is not changed if the solution at half-neutralizartion is diluted with water.

Concept introduction:

Titration is to determine the quantitative information of the unknown sample when a known volume and concentration of reactant is utilized. It is usually an acid-base reaction. The unknown solution is the titrantand the known volume of solution is the titrant. At the equivalence point, the color of the indicator changes.

Interpretation Introduction

(e)

Interpretation:

If the given statement is true or false should be determined.

For the given case, phenolphthalein is a good indicator to be used.

Concept introduction:

Titration is to determine the quantitative information of the unknown sample when a known volume and concentration of reactant is utilized. It is usually an acid-base reaction. The unknown solution is the titrantand the known volume of solution is the titrant. At the equivalence point, the color of the indicator changes.