One mole of any substance contains approximately 6.022 x 1023 molecules. This number is known as Avogadro’s number. Therefore, one mole of hydrogen peroxide (H₂O₂) also consists of about 6.022 x 1023 molecules.
To further explain, the mole is a standard unit in chemistry that quantifies the amount of a substance. It allows chemists to count particles by weighing them. So, when you have one mole of hydrogen peroxide, you can think of it as having around 602 sextillion molecules of H₂O₂. This is a fundamental concept in chemistry that helps in understanding reactions, solutions, and various chemical calculations.