The mole is an entirely equivalent quantity to a dozen.
A mole of something, atoms, molecules, electrons, eggs, SPECIFIES a quantity of 6.022×1023 INDIVIDUAL ITEMS of that something. Chemists often use the symbol the symbol NA to represent the so-called Avogrado's number.............
So, let's assess the number of particles in 6 dozen H2S molecules. Clearly, there are 144 hydrogen atoms, and 72 sulfur atoms. Agreed?
So if there are is a 6⋅mol quantity there are 12×NA hydrogen atoms, and 6×NA sulfur atoms.
And given that NA 1H atoms has a mass of 1⋅g, and a mass of NA 32S is 32⋅g, we can use the mole as the link between the micro world of atoms and molecules, with the macro world of grams, and litres....those quantities we can measure in a laboratory.
