Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:Na2B4O7H10O5 -- 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: Na2B4O7H10O5
Molar Mass: 291.2906 g/mol        1g=3.43299783789796E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
Na                2                  22.9898                       15.78%
B                  4                  10.811                        14.85%
O                  12                15.999                        65.91%
H                  10                1.0079                        3.46%

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