Chemists need stoichiometry to make the scale of chemistry more understandable - Hank is here to explain why, and to teach us how to use it. Table of Contents Atomic Mass Units 2:24 Moles 5:12 Molar Mass 5:59 Equation Balancing 8:45 Molar Ratios 11:11 Crash Course elsewhere on the internet: http://www.facebook.com/YouTubeCrashCourse http://www.twitter.com/TheCrashCourse http://thecrashcourse.tumblr.com References and image licenses for this episode can be found in the Google document here: http://dft.ba/-51j2 Support CrashCourse on Subbable: http://subbable.com/crashcourse