Intro to Acids and Bases

Front

What is the definition of 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 the definition of 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 the pH scale?

Back

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

Front

What is the significance of a pH of 7?

Back

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

Front

What is a hydroxide ion?

Back

A hydroxide ion (OH-) is a negatively charged ion that is produced by bases when they dissolve in water.

Front

What is the role of acids in chemical reactions?

Back

Acids can donate protons to other substances, facilitating various chemical reactions, including neutralization with bases.

Front

What is the role of bases in chemical reactions?

Back

Bases can accept protons from acids, leading to neutralization reactions and the formation of water and salts.

Front

What is an example of a common household acid?

Back

Vinegar, which contains acetic acid, is a common household acid.

Front

What is an example of a common household base?

Back

Baking soda, which contains sodium bicarbonate, is a common household base.

Front

How does the pH of human blood compare to neutral?

Back

Human blood has a pH between 7.35 and 7.45, making it slightly basic.