Acids and Bases with pH

Front

What is a base?

Back

A base is a substance that can accept hydrogen ions (H+) or donate electron pairs in reactions. Bases typically have a pH greater than 7.

Front

What do bases produce in water?

Back

Bases produce hydroxide ions (OH-) in water.

Front

What is the pH range of bases?

Back

The pH range of bases is from 7.1 to 14.

Front

What color does litmus paper turn in the presence of a base?

Back

Litmus paper turns blue in the presence of a base.

Front

What is the definition of pH?

Back

pH is a measure of how acidic or basic a solution is, on a scale from 0 to 14.

Front

What is an acid?

Back

An acid is a substance that can donate hydrogen ions (H+) in a solution and typically has a pH less than 7.

Front

What do acids produce in water?

Back

Acids produce hydrogen ions (H+) in water.

Front

What is the pH of a neutral solution?

Back

The pH of a neutral solution is 7.

Front

What happens to litmus paper in the presence of an acid?

Back

Litmus paper turns red in the presence of an acid.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

As the pH decreases, the concentration of hydrogen ions (H+) increases.