Calculate molar mass (calculate molecular weight, Molar Mass Calculator).Formula:K4P2O7 -- 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: K4P2O7
Molar Mass: 330.333 g/mol        1g=3.02724826160269E-03 mol
Percent composition (by mass):
Element  Count           Atom Mass                %(by mass)
K                  4                  39.098                        47.34%
P                  2                  30.974                        18.75%
O                  7                  15.999                        33.9%

Top Use: Molar Mass Calculator Formula: Co2(Cr2O7)3 Recent user inquiry: 5/16/2025 13:02Molar Mass Calculator Formula: cFe2O3 5/16/2025 13:02Molar Mass Calculator Formula: C6H11O7 5/16/2025 13:01Molar Mass Calculator Formula: C6H6Br9 5/16/2025 13:01Molar Mass Calculator Formula: C2h20c3 5/16/2025 13:01Molar Mass Calculator Formula: N4