Mole Day!  If you are reading this before 6:02 p.m. in your time zone, you still have time to celebrate Mole Day. Mole Day commemorates Avogadro’s Number (6.02 x 10^23), which is a basic measuring unit in chemistry: For a given molecule, one mole is a mass (in grams) whose number is equal to the … Continue reading Mole Day, Russian Chauvinist