The Mass of 1 mol of Atoms of an Element is Its Molar Mass

• The mass of 1 mol of atoms changes for different elements:

32.07 g sulfur = 1 mol sulfur = 6.022 × 1023 S atoms

12.01 g carbon = 1 mol carbon = 6.022 × 1023 C atoms

6.94 g lithium = 1 mol lithium = 6.022 × 1023 Li atoms

• The lighter the atom, the less mass in 1 mol of that atom.