Intro to Acids & Bases

Front

What is the pH scale?

Back

The pH scale measures the acidity or basicity of a solution, ranging from 0 (very acidic) to 14 (very basic), with 7 being neutral.

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution and has a pH less than 7.

Front

What is a base?

Back

A base is a substance that accepts protons (H+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

Front

What is neutralization?

Back

Neutralization is a chemical reaction between an acid and a base that produces water and a salt.

Front

What is the role of indicators in acid-base chemistry?

Back

Indicators are substances that change color in response to changes in pH, helping to identify whether a solution is acidic or basic.

Front

What is the significance of a pH of 7?

Back

A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic.

Front

What happens to the pH of a solution when an acid is added?

Back

The pH of the solution decreases, indicating increased acidity.

Front

What happens to the pH of a solution when a base is added?

Back

The pH of the solution increases, indicating increased basicity.

Front

What is the relationship between pH and hydroxide ion concentration?

Back

As pH increases, hydroxide ion (OH-) concentration increases; as pH decreases, hydroxide ion concentration decreases.

Front

What is the chemical formula for hydrochloric acid?

Back

HCl