Explore the periodic table, build formulas, and get approximate molar mass — with optional mass-to-moles.
Supports parentheses and brackets: Fe4(Fe(CN)6)3, Mg(NO3)2.
Molar mass (approx.)
74.0920 g/mol
Mass percent by element
Periodic table
AlkaliAlkalineTransitionPost‑transitionMetalloidNonmetalHalogenNobleLanthanideActinide