pH, Acids, & Bases

Front

What is the pH scale used for?

Back

The pH scale is 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 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 equal concentrations of H+ and OH- ions.

Front

What happens to blue litmus paper when it is placed in an acidic solution?

Back

Blue litmus paper turns red when placed in an acidic solution.

Front

What happens to red litmus paper when it is placed in a basic solution?

Back

Red litmus paper turns blue when placed in a basic solution.

Front

What is the relationship between pH and H+ ion concentration?

Back

As the pH decreases, the concentration of H+ ions increases, and vice versa.

Front

What is a common property of strong acids and strong bases in solution?

Back

Both strong acids and strong bases are conductors of electricity in solution.

Front

What is the term for a solution with a pH of less than 7?

Back

A solution with a pH of less than 7 is termed acidic.

Front

What is the term for a solution with a pH of greater than 7?

Back

A solution with a pH of greater than 7 is termed basic or alkaline.