Moles ↔ Atoms / Molecules

[ MOLES ] → [ MOLECULES ] → [ ATOMS ]
       Avogadro's Number       Subscripts

Example:
• How many water molecules are there in 0.65 mol?
0.65mol x 6.02x10^23molec / 1 mol = 3.9 x 10^23molec

•How many hydrogen atoms are there? How many oxygen atoms?
3.9x10^23molec x 2 atoms / 1 molec = 7.8 x 10^23atoms }Hydrogen

3.9x10^23molec x 1 atoms / 1 molec = 3.9 x 10^23atoms } Oxygen

- Paulo Santillan