Tomorrow (10-23) marks the annual Mole Day chemfest. I'm celebrating a day early because I am attending a special lunch for Berea Home Village and the organizer wondered what tie I would wear! Mole Day is special to chemists because its date (10-23) corresponds with the exponential part of Avogadro's Number (6.02 x 10**23), which is how many things (atoms or molecules) there are in one mole of a substance. Moles are the fundamental units for chemical equations, such as "Na + 1/2 Cl2 -> NaCl" which means that one mole of sodium (Na) reacts with one-half mole of chlorine (Cl2) to produce one mole of sodium chloride (table salt, NaCl). My tie celebrates the periodic table and all sorts of chemistry lab equipment.
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