Q1. Give three examples of molecules or ions that are classified as acids and three that are classified as bases.

Background

Topic: Acid-Base Concepts

This question tests your understanding of how to identify acids and bases according to common definitions (Arrhenius, Brønsted-Lowry, and Lewis).

Key Terms:

• Acid: A substance that donates a proton (H+) or accepts an electron pair.

• Base: A substance that accepts a proton (H+) or donates an electron pair.

Step-by-Step Guidance

1. Recall the definitions of acids and bases (Arrhenius, Brønsted-Lowry, Lewis).

2. Think of common examples: For acids, consider substances that release H+ in water; for bases, those that release OH- or accept H+.

3. List three acids and three bases, making sure to include both molecules and ions.

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Q2. Write the formula and name of the conjugate base of each of the following acids:

Background

Topic: Conjugate Acid-Base Pairs

This question tests your ability to identify conjugate bases formed when acids lose a proton.

Key Terms:

• Conjugate base: The species formed when an acid donates a proton.

• Acid: A molecule or ion that can donate a proton.

Step-by-Step Guidance

1. For each acid, remove one H+ to form the conjugate base.

2. Write the resulting formula and name for each conjugate base.

3. Check that the charge and formula are correct after removing H+.

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Q3. Write the formula and name of the conjugate acid of each of the following bases:

Background

Topic: Conjugate Acid-Base Pairs

This question tests your ability to identify conjugate acids formed when bases accept a proton.

Key Terms:

• Conjugate acid: The species formed when a base accepts a proton.

• Base: A molecule or ion that can accept a proton.

Step-by-Step Guidance

1. For each base, add one H+ to form the conjugate acid.

2. Write the resulting formula and name for each conjugate acid.

3. Check that the charge and formula are correct after adding H+.

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Q4. Write the equation for the ionization of each of the following acids in water:

Background

Topic: Acid Ionization

This question tests your ability to write chemical equations showing how acids ionize in water to produce H+ (or H3O+).

Key Terms:

• Ionization: The process by which an acid donates a proton to water.

• Acid: Substance that donates H+.

Step-by-Step Guidance

1. Write the acid reacting with water: Acid + H2O → conjugate base + H3O+.

2. Balance the equation and check charges.

3. Repeat for each acid listed.

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Q5. Write the equation for the ionization of each of the following bases in water:

Background

Topic: Base Ionization

This question tests your ability to write chemical equations showing how bases ionize in water to produce OH- or accept H+.

Key Terms:

• Ionization: The process by which a base accepts a proton from water.

• Base: Substance that accepts H+.

Step-by-Step Guidance

1. Write the base reacting with water: Base + H2O → conjugate acid + OH-.

2. Balance the equation and check charges.

3. Repeat for each base listed.

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Q6. For each of the following, write the equation for the reaction of the acid and base in water:

Background

Topic: Acid-Base Reactions

This question tests your ability to write equations for reactions between acids and bases in aqueous solution.

Key Terms:

• Acid-Base Reaction: Transfer of a proton from acid to base.

Step-by-Step Guidance

1. Identify the acid and base in each pair.

2. Write the equation showing the transfer of H+ from acid to base.

3. Balance the equation and check charges.

Try solving on your own before revealing the answer!