Acid-Base Titration and Hydrolysis

1. What is the purpose of titration in acid-base chemistry?

• To measure the temperature of a solution.

• To neutralize a strong acid with a weak base.

• To determine the concentration of an unknown acid or base.

• To identify the color of an acid or base.

a) To measure the pH of a solution

• Use a thermometer to measure temperature.

• Add salt to the solution to change its properties.

• Use a pH meter or pH indicator strips.

• Use a colorimeter to measure light absorption.

b) To determine the concentration of an acid or base

• Titration

• Evaporation

• Filtration

• Distillation

c) To neutralize a solution

• Stir the solution vigorously without adding anything

• Heat the solution to evaporate excess acid

• Add water to an acidic solution

• Add a base to an acidic solution or an acid to a basic solution until neutral.

d) To create a buffer solution

• Mix a strong acid with water

• Dilute a strong acid with a weak acid

• Mix a weak acid with its conjugate base or a weak base with its conjugate acid.

• Combine two strong bases

e) To evaporate a solvent

• Stir the solution vigorously.

• Cool the solution to decrease temperature.

• Add salt to the solution.

• Heat the solution to increase temperature.

2. Which indicator is commonly used for strong acid to strong base titrations?

• Methyl orange

• Phenolphthalein

• Bromothymol blue

• Litmus paper

a) Methyl orange

• Methyl orange

• Litmus paper

• Bromothymol blue

• Phenolphthalein

b) Phenolphthalein

• Methyl Orange

• Litmus Paper

• Bromothymol Blue

• Phenolphthalein

c) Bromothymol blue

• Bromothymol blue is a type of salt.

• Bromothymol blue is a flavoring agent.

• Bromothymol blue is a pH indicator.

• Bromothymol blue is a type of fruit.