Acids and Bases

Front

What is an acid?

Back

An acid is a substance that donates protons (H+) in a solution, resulting in 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, resulting in a pH greater than 7.

Front

What is pH?

Back

pH is a measure of the acidity or basicity of a solution, calculated as the negative logarithm of the hydrogen ion concentration.

Front

What is a neutral solution?

Back

A neutral solution has a pH of 7, meaning it has equal concentrations of H+ and OH- ions.

Front

What are acid-base indicators?

Back

Acid-base indicators are substances that change color in response to changes in pH, helping to determine the acidity or basicity of a solution.

Front

What is the pH range of acids?

Back

The pH range of acids is from 0 to 6.9.

Front

What is the pH range of bases?

Back

The pH range of bases is from 7.1 to 14.

Front

What is the role of H+ ions in acidic solutions?

Back

In acidic solutions, there is a higher concentration of H+ ions compared to OH- ions.

Front

What is the role of OH- ions in basic solutions?

Back

In basic solutions, there is a higher concentration of OH- ions compared to H+ ions.

Front

What is a strong acid?

Back

A strong acid is an acid that completely dissociates in water, releasing all of its H+ ions.