Acids, bases & pH

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+) in a solution and has a pH greater than 7.

Front

What is pH?

Back

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

Front

What is the pH of a strong acid?

Back

The pH of a strong acid is typically between 0 and 3.

Front

What is the pH of a strong base?

Back

The pH of a strong base is typically between 11 and 14.

Front

What happens to litmus paper in an acidic solution?

Back

In an acidic solution, blue litmus paper turns red.

Front

What happens to litmus paper in a basic solution?

Back

In a basic solution, red litmus paper turns blue.

Front

What is a neutral solution?

Back

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

Front

What is the role of acids in batteries?

Back

Acids in batteries act as electrolytes, facilitating the flow of electric current.

Front

What is the significance of the pH scale?

Back

The pH scale helps determine the acidity or basicity of substances, which is important in chemistry, biology, and environmental science.