Avogadro’s number, also known as Avogadro’s constant, is a fundamental concept in chemistry. It is defined as 6.02 x 1023 particles per mole. This number tells us how many atoms, molecules, or other particles are present in one mole of a substance.
To determine the number of particles in 4.2 moles of a substance, you can use the following formula:
Number of Particles = Number of Moles × Avogadro’s Number
Plugging in the values:
Number of Particles = 4.2 moles × 6.02 x 1023 particles/mole
Number of Particles = 2.5284 x 1024 particles
Therefore, there are approximately 2.5284 x 1024 particles in 4.2 moles of a substance.