Molar Mass of Common Oxides
The term “oxides” refers to compounds composed of oxygen combined with another element or elements. The molar mass of oxides depends on the specific elements involved. The table below provides a curated list of molar mass values for common oxides.
| Carbon dioxide (CO2) | 44.009 |
| Silicon dioxide (SiO2) | 60.084 |
| Sulfur dioxide (SO2) | 64.064 |
| Nitrogen dioxide (NO2) | 46.005 |
| Carbon monoxide (CO) | 28.01 |
| Nitric oxide (NO) | 30.006 |
| Hydrogen peroxide (H2O2) | 34.015 |
| Aluminum oxide (Al2O3) | 101.961 |
| Iron(III) oxide (Fe2O3) | 159.688 |
| Iron(II) oxide (FeO) | 71.845 |
| Copper(II) oxide (CuO) | 79.545 |
| Zinc oxide (ZnO) | 81.38 |
| Lead(II) oxide (PbO) | 223.2 |
| Magnesium oxide (MgO) | 40.304 |
| Sodium oxide (Na2O) | 61.979 |
| Potassium oxide (K2O) | 94.196 |
| Calcium oxide (CaO) | 56.077 |
| Phosphorus pentoxide (P4O10) | 283.89 |
| Chromium(III) oxide (Cr2O3) | 151.99 |
| Manganese(IV) oxide (MnO2) | 86.937 |
| Nickel(II) oxide (NiO) | 74.693 |
| Tin(IV) oxide (SnO2) | 150.709 |
| Mercury(II) oxide (HgO) | 216.59 |
| Barium oxide (BaO) | 153.326 |
| Strontium oxide (SrO) | 103.62 |
| Beryllium oxide (BeO) | 25.012 |
| Titanium dioxide (TiO2) | 79.866 |
| Vanadium(V) oxide (V2O5) | 181.88 |
| Chromium(VI) oxide (CrO3) | 99.994 |
| Manganese(II) oxide (MnO) | 70.937 |
| Cobalt(II) oxide (CoO) | 74.933 |
| Ruthenium(IV) oxide (RuO2) | 133.07 |
| Rhodium(III) oxide (Rh2O3) | 253.809 |
| Palladium(II) oxide (PdO) | 122.42 |
| Silver(I) oxide (Ag2O) | 231.736 |
| Cadmium oxide (CdO) | 128.41 |
| Indium(III) oxide (In2O3) | 277.634 |
| Antimony(V) oxide (Sb2O5) | 323.517 |
| Tellurium dioxide (TeO2) | 159.6 |
| Iodine pentoxide (I2O5) | 333.81 |
| Ruthenium tetroxide (RuO4) | 165.07 |
| Osmium tetroxide (OsO4) | 254.23 |
| Xenon trioxide (XeO3) | 179.288 |
| Perchloric acid (HClO4) | 100.459 |
| Nitrogen pentoxide (N2O5) | 108.01 |
Related Tables
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Occupational Safety and Health Administration (OSHA): The National Institute for Occupational Safety and Health (NIOSH).