What is mole: A mole is Avogadro's number of particles

A mole is Avogadro's number of particles, which is exactly 6.02214076×10 23. Learn how to use moles to convert between atoms or molecules and grams, and why moles are useful for chemical calculations. A mole corresponds to the mass of a substance that contains 6.023 x 10 23 particles of the substance. The mole is the SI unit for the amount of a substance. Its symbol is mol. By definition: 1 mol of carbon-12 has a mass of 12 grams and contains 6.022140857 x 10 23 of carbon atoms (to 10 significant figures). Know what is mole, simple definition of mole in chemistry, how to calculate number of moles, mass from moles, moles from volume, molar mass Discover the mole concept in chemistry—learn how 6.022 × 10²³ atoms define a mole, why atomic mass equals grams per mole, and how to convert between mass and particles.