Acids and Bases

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 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 strongest acid on the pH scale?

Back

The strongest acid on the pH scale is 0, which represents a highly acidic solution.

Front

What is the strongest base on the pH scale?

Back

The strongest base on the pH scale is 14, which represents a highly basic solution.

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 soap?

Back

Soap typically has a pH of around 9 to 10, making it basic.

Front

What is the relationship between pH and hydrogen ion concentration?

Back

As pH decreases, hydrogen ion concentration increases, indicating a more acidic solution.

Front

What is a common indicator used to test pH?

Back

Litmus paper is a common indicator used to test whether a solution is acidic or basic.