pH (Acids/Bases) - A. Hodges

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 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+) or donates hydroxide ions (OH-) in a solution and has a pH greater than 7.

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 purpose of an indicator?

Back

An indicator is a substance that changes color in the presence of an acid or base, helping to determine the pH of a solution.

Front

What is neutralization?

Back

Neutralization is a chemical reaction between an acid and a base that produces salt and water.

Front

What are strong acids?

Back

Strong acids are acids that dissociate completely in water, releasing all their protons.

Front

What are weak acids?

Back

Weak acids are acids that do not fully dissociate in water, meaning only some of their protons are released.

Front

What is the pH of lemon juice?

Back

Lemon juice typically has a pH of around 2, making it acidic.

Front

What is the pH of baking soda?

Back

Baking soda has a pH of around 9, making it a basic substance.