It's Mole Day! Celebrated on October 23, Mole Day recognizes Avogadro's number (6.02 x 10^23), which is a basic unit of measurement in chemistry. Lab Out Loud co-hosts Brian Bartel and Dale Basler discuss mole day, reminisce on how they have celebrated it, and celebrate Maurice Oehler, the founder of the National Mole Day Foundation. How do you celebrate Mole Day? Leave a comment at laboutloud.com, tweet a picture to @laboutloud or leave a message at facebook.com/LabOutLoud/. Show notes at: https://laboutloud.com/2017/10/episode-174-mole-day/