CALCULATE MOLECULAR WEIGHT - MOLAR MASS CALCULATOR
Enter a chemical formula to calculate its molar mass and elemental composition:
Molar mass of Mg(OH)2 is 58.31981 ± 0.00003 g/mol
Formula in Hill system is H2MgO2
Elemental composition of Mg(OH)2:
Direct link to this page
|Symbol||Element||Atomic weight||Number of atoms||Mass percent|
|Mg||Magnesium||24.30506||1|| 41.6755 %|
|O||Oxygen||15.99943||2|| 54.8679 %|
|H||Hydrogen||1.007947||2|| 3.4566 %|
Please tell about this free chemistry software to your friends!
Computing molar mass (molar weight)
To calculate molar mass of a chemical compound enter it's formula and click 'Calculate!'.In chemical formula you may use:
Examples of molar mass computations:
- Any chemical element
- Functional groups: D, Ph, Me, Et, Pr, Bu, AcAc, Ac, For, Ts, Tos, Bz, TMS, tBu, Bzl, Bn, Dmg
- parantesis () or brackets .
Computing molecular weight (molecular mass)
To calculate molecular weight of a chemical compound enter it's formula, specify its isotope mass number after each element in square brackets.
Examples of molecular weight computations:
Definitions of molecular mass, molecular weight, molar mass and molar weight
Weights of atoms and isotopes are from NIST article.
- Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
- Molar mass (molar weight) is the mass of one mole of a substance and is expressed in g/mol.
Give us feedback about your experience with Molecular Weight Calculator.
Related: Molecular weights of amino acids
|molecular weights calculated today