SPS6. Solutions, Acids, and Bases

Front

What is an acid?

Back

An acid is a substance that donates hydrogen ions (H+) in a solution, resulting in a pH less than 7.

Front

What is a base?

Back

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

Front

What is a neutral solution?

Back

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

Front

How can you classify a substance as acidic, basic, or neutral?

Back

By using pH indicators, which change color based on the acidity or basicity of the solution.

Front

What happens to Litmus paper in an acidic solution?

Back

Litmus paper turns red in an acidic solution due to the higher concentration of H+ ions.

Front

What happens to Litmus paper in a basic solution?

Back

Litmus paper turns blue in a basic solution due to the higher concentration of OH- ions.

Front

What is the formula for hydrochloric acid dissociation in water?

Back

HCl → H+ + Cl-.

Front

What is a strong acid?

Back

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

Front

What is a strong base?

Back

A strong base is one that completely dissociates in solution, releasing all of its OH- ions.

Front

What is a saturated solution?

Back

A saturated solution is one in which the maximum amount of solute has dissolved at a given temperature.