Previous Page...   Printer Version Science Constants - Avogadro Constant Symbol: NA Value: 6.02214199(47) × 1023 mol-1 Category: - Physico-Chemical Constants Description: Avogadro's Constant is the number of atoms in 12g of pure isotope 12C. It is also the number of molecules in one mole of any substance.   [ H O M E ] [ S C I E N C E ] [ M A T H S ] [ A S T R O N O M Y ] [ Download ] [ Shop ] [ Contact ] [ About ]