# Why and what is Mole Day ?

See the bottom of this page for the answer. When is Mole Day? Mole Day is typically celebrated on October 23, beginning at 6:02a.m. and ending at 6:02p.m. Get it? Avogadro’s number is 6.02 x 1023, 6:02 in the morning to…. oh never mind. You get it. What is a Mole? A mole is simply a constant number, much like a dozen is a constant number. The numerical equivalent to a dozen is 12, while the numerical equivalent to a mole is 6.02 x 1023. Therefore, one mole of any kind of objects is 6.02 x 1023 of those objects. The concept of a mole becomes very convenient in Chemistry because it allows us to count objects that are much too small for us to see. Here’s basically how it works. It turns out that if you have 1 mole of atoms, then they will have a measurable mass, in grams, that is equal to the average atomic mass of single atoms. For instance, 1 mole of carbon atoms (6.02 x 1023 atoms) will have a mass of 12.011g. So, we can convert something that is measurable in the lab, mass, to somet