Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:KB -- 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: KB
Molar Mass: 49.909 g/mol        1g=2.00364663687912E-02 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  1                  39.098                        78.34%
B                  1                  10.811                        21.66%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 3/12/2025 09:39Molar Mass Calculator Formula: Na7OH8 3/12/2025 09:39Molar Mass Calculator Formula: FeC2o4h4o2 3/12/2025 09:38Molar Mass Calculator Formula: H2C2O 3/12/2025 09:38Molar Mass Calculator Formula: CuSO4.8h20 3/12/2025 09:38Molar Mass Calculator Formula: c3h2o5