Celebrate Chemistry Day with Dr. Knapp from Georgetown College (Families)

It's Science! Free! Celebrate American Chemistry Assoc.'s (ACS) MOLE DAY with Dr. Knapp from Georgetown College and the science of Avogadro's number! This year's theme is Chemistry Under Construction Avogadro's constant is the number of elementary entities (atoms, molecules, ions, or other particles) in one mole of a substance. Its exact value is 6.02214076 × 10²³ mol⁻¹, as defined by the International System of Units (SI) since 2019.