Mass Mole Calculator
Amount of substance
0.555093 mol
Molar Mass Calculator
Molar mass
18.0150 g/mol
Monoisotopic (exact) mass
18.010565 Da
Formula as parsed
H2O
Atoms per formula unit
3
Net ionic charge
0
Mass
10.000000 g
Worked out from IUPAC Commission on Isotopic Abundances and Atomic Weights - Standard Atomic Weights (abridged, five significant figures) and 3 other sources.
Masses use the IUPAC/CIAAW abridged standard atomic weights. Check the parsed formula shown in the result before using these figures for reagent preparation, dosing or regulatory reporting.
How this is worked out
5 steps
- Parsed formula: H2O
- H: 2 x 1.008 = 2.016 g/mol (11.1907 % by mass)
- O: 1 x 15.999 = 15.999 g/mol (88.8093 % by mass)
- Molar mass = 18.015 g/mol
- n = m / M = 10 g / 18.015 g/mol = 0.55509298 mol
Percent composition by masstable
| symbol | element | atoms | atomicWeight | massContribution | percentByMass |
|---|---|---|---|---|---|
| H | Hydrogen | 2 | 1.008 | 2.016 | 11.190674 |
| O | Oxygen | 1 | 15.999 | 15.999 | 88.809326 |
Results are general information, not financial, tax, legal, medical or engineering advice.