Chapter 4, Problem 4.101QP

(a)

Interpretation Introduction

Interpretation:

The given sample is an acid or base has to be determined.

Concept Introduction:

Acid -Base reaction:

• The reaction between acid and base to produce a salt is called acid-base reaction.

Litmus test:

• An acidity or alkalinity of given sample is teased by using litmus paper is called litmus test.
• The acid sample is turns blue litmus in to red.
• The base sample is turns red litmus in to blue.

(b)

Interpretation Introduction

Interpretation:

The given sample concentration has to be determined.

Concept Introduction:

The molar mass of an element or compound is the mass in grams of 1 mole of that substance, and it is expressed in the unit of grams per mol (g/mol)

Volumetric principle:

• The unknown concentration of the chemical is determined by with the help of another chemical which is having known concentration and volume is called titration.
• The titration process is works under the volumetric principle and it is, the particular volume and concentration of solution is completely neutralized by the equal volume and concentration of another solution.

  $\text{V1}\times \text{M1=V2}\times \text{M2}$

• Here $\text{V1}$ and $\text{M1}$ is volume and concentration of solution and $\text{V2}$,  $\text{M2}$ are the volume concentration of another solution.

(c)

Interpretation Introduction

Interpretation:

The given sample is weak or strong electrolyte has to be determined.

Concept Introduction:

Electrolyte:

• The chemical compound, which is completely dissociate to give the ions in water and conduct the electricity is called electrolyte.
• The weak electrolyte is not completely dissociated to give a ions in water so the conductivity is less than the strong electrolyte.