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 substance?

Back

A neutral substance is one that has a pH of 7, meaning it is neither acidic nor basic, like pure water.

Front

What is the range of pH for acids?

Back

Acids are found on the pH scale between 0 and 7.

Front

What is the range of pH for bases?

Back

Bases are found on the pH scale between 7 and 14.

Front

What is the significance of a pH of 7.4 in human blood?

Back

A pH of 7.4 indicates that human blood is slightly basic, which is essential for proper physiological functions.

Front

What is KOH?

Back

KOH, or potassium hydroxide, is a strong base commonly used in various applications.

Front

What happens to the pH of a solution when an acid is added?

Back

When an acid is added to a solution, the pH decreases, making the solution more acidic.

Front

What happens to the pH of a solution when a base is added?

Back

When a base is added to a solution, the pH increases, making the solution more basic.