Molar Mass Calculator

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Use element symbols with subscripts. Parentheses and brackets are supported, plus hydrate dot notation with * or a period, e.g. CuSO4*5H2O.
g/mol is the standard chemistry unit. kg/mol is useful for larger molecules. Da and u are numerically equal to g/mol for conventional atomic weights.
Choose what additional quantity to compute alongside the molar mass.
Mass in grams. The calculator converts this to moles using n = m / M.
g
Turn this on to find the molar mass of an unknown gas from its pressure, volume, temperature, and mass, using the ideal gas law M = mRT / PV.
Molar mass
180.156 g/mol
Molar mass (g/mol)180.156
Molar mass (kg/mol)0.180156
Atoms per formula unit24
Moles0.09991mol

C6H12O6 has a molar mass of 180.156 g/mol.

  • C6H12O6 contains 24 atoms per formula unit, summed from standard IUPAC atomic weights.
  • One mole of this substance (6.022 x 10^23 formula units) weighs exactly this many grams.
  • The composition table below shows each element's percent contribution to the total mass.
  • Your 18 g sample contains 0.09991 mol of C6H12O6.

Next stepDissolving this in a known volume? Use the molarity calculator to find the concentration in mol/L.

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