Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:h21 -- e-Tools Age

	Calculate molar mass
	Enter a chemical formula in the field below, pay attention to formula is case sensitive!!!	The formula should be entered as: H₂SO₄= H2SO4 CuSO₄.5H2O=CuSO4.5H2O 3BeO.Al2O₃.6SiO₂= (BeO)3.Al2O3.6SiO2

Calculations:
Formula: h21
Molar Mass: 21.1659 g/mol        1g=4.72458057535942E-02 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
h                  21                1.0079                        100%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 1/20/2026 13:28Molar Mass Calculator Formula: 5H3O2C 1/20/2026 13:27Molar Mass Calculator Formula: Ba3(Po4)3 1/20/2026 13:26Molar Mass Calculator Formula: H7P3O4 1/20/2026 13:26Molar Mass Calculator Formula: 5h 1/20/2026 13:26Molar Mass Calculator Formula: Ca(NO3).4H2O