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Molecular Weight

The combined weight (as given on the periodic table) of all the elements in a compound. In chemistry the words mass and weight are both used interchageably.

Atomic and Molecular Weights
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Abietic Acid 302.45 gmol-1Clip Acenaphthene 154.21 gmol-1Clip Acenaphthoquinone 182.17 gmol-1Clip
Acenaphthylene 152.19 gmol-1Clip Acepromazine 326.456 gmol-1Clip Acetaldehyde 44.05 gmol-1Clip
Acetaminophen 151.169 gmol-1Clip Acetanilide 135.17 gmol-1Clip Acetoguanamine 125.13 gmol-1Clip
Aciclovir 225.21 gmol-1Clip Acridine 179.22 gmol-1Clip Acrolein 56.06 gmol-1Clip
Acrylamide 71.08 gmol-1Clip Acrylic Acid 72.06 gmol-1Clip Acrylonitrile 53.06 gmol-1Clip
Acryloyl Chloride 90.51 gmol-1Clip Actinium 227.0278 gmol-1Clip Adamantane 136.23 gmol-1Clip
Adipoyl Chloride 183.03 gmol-1Clip Alanine 89.09 gmol-1Clip Alcian Blue 1298.86 gmol-1Clip
Aldosterone 360.44 gmol-1Clip Aluminium 26.98154 gmol-1Clip Aluminium Bromide 533.387 gmol-1Clip
Aluminium Chloride 133.34 gmol-1Clip Aluminium Fluoride 83.977 gmol-1Clip Aluminium Hydride 30.005 gmol-1Clip
Aluminium Iodide 845.39 gmol-1Clip Aluminium Nitride 40.988 gmol-1Clip Aluminium Oxide 102 gmol-1Clip
Aluminium Sulphide 150.161 gmol-1Clip Americium 243.0614 gmol-1Clip Ammonia 17.031 gmol-1Clip
Ammonium Carbonate 96.09 gmol-1Clip Ammonium Chloride 54.49 gmol-1Clip Ammonium Fluoride 37.0367 gmol-1Clip
Ammonium Iodide 144.94 gmol-1Clip Ammonium Nitrate 80 gmol-1Clip Amyl Nitrite 117.15 gmol-1Clip
Angelic Acid 100.12 gmol-1Clip Antimony 121.75 gmol-1Clip Antimony Pentachloride 299.02 gmol-1Clip
Antimony Pentafluoride 216.74 gmol-1Clip Antimony Tetroxide 153.7588 and 307.5176 gmol-1Clip Antimony Tribromide 361.472 gmol-1Clip
Antimony Trichloride 228.13 gmol-1Clip Antimony Trifluoride 178.75 gmol-1Clip Antimony Triiodide 502.473 gmol-1Clip
Antimony Trioxide 291.52 gmol-1Clip Antimony Triselenide 480.4 gmol-1Clip Antimony V Oxide 323.5 gmol-1Clip
Arginine 174.2 gmol-1Clip Argon 39.948 gmol-1Clip Arsenic 74.9216 gmol-1Clip
Arsenic III Oxide 197.841 gmol-1Clip Arsenic V Oxide 229.84 gmol-1Clip Astatine 209.9871 gmol-1Clip
Barium 137.33 gmol-1Clip Barium Carbonate 197.34 gmol-1Clip Benzoin 212.24 gmol-1Clip
Berkelium 247.0703 gmol-1Clip Beryllium 9.01218 gmol-1Clip Beryllium Bromide 168.82 gmol-1Clip
Beryllium Chloride 79.9182 gmol-1Clip Beryllium Fluoride 47.009 gmol-1Clip Beryllium Hydroxide 43.02678 gmol-1Clip
Beryllium Iodide 262.821 gmol-1Clip Beryllium Nitride 55.05 gmol-1Clip Beryllium Oxide 25.01 gmol-1Clip
Beryllium Telluride 136.612 gmol-1Clip Biphenyl 154.21 gmol-1Clip Bismuth 208.9804 gmol-1Clip
Bismuth Chloride 315.33 gmol-1Clip Bismuth Subcarbonate 509.97 gmol-1Clip Boron 10.811 gmol-1Clip
Boron Monoxide 37.621 gmol-1Clip Boron Nitride 24.818 gmol-1Clip Boron Suboxide 80.865 gmol-1Clip
Boron Trioxide 69.6182 gmol-1Clip Bromine 79.904 gmol-1Clip Bromoethane 108.97 gmol-1Clip
Bromomethane 94.95 gmol-1Clip Butadiene 54.09 gmol-1Clip Butanol 74.1 gmol-1Clip
Cadmium 112.41 gmol-1Clip Cadmium Oxide 128.4 gmol-1Clip Cadmium Sulphate 208.47 gmol-1Clip
Caesium 132.9054 gmol-1Clip Caesium Bromide 212.809 gmol-1Clip Caesium Chloride 168.358 gmol-1Clip
Caesium Fluoride 151.904 gmol-1Clip Caesium Hydride 133.913 gmol-1Clip Caesium Iodide 259.81 gmol-1Clip
Caesium Oxide 281.81 gmol-1Clip Caesium Peroxide 297.81 gmol-1Clip Caesium Sulphide 297.877 gmol-1Clip
Caesium Superoxide 164.904 gmol-1Clip Caffeine 194.19 gmol-1Clip Calcium 40.078 gmol-1Clip
Calcium Carbonate 100.09 gmol-1Clip Californium 251.0796 gmol-1Clip Carbon 12.011 gmol-1Clip
Carbon Tetrachloride 153.82 gmol-1Clip Carbonic Acid 62.03 gmol-1Clip Cerium 140.12 gmol-1Clip
Cerium III Chloride 246.48 (anhydrous) gmol-1Clip Cerium III Oxide 328.24 gmol-1Clip Cerium IV Sulphate 332.24 (anhydrous) gmol-1Clip
Cerium Oxide 172.1142 gmol-1Clip Chlorine 35.453 gmol-1Clip Chlorobenzene 112.56 gmol-1Clip
Chloroethane 64.51 gmol-1Clip Chloroform 119.38 gmol-1Clip Chloromethane 50.49 gmol-1Clip
Chromium 51.996 gmol-1Clip Chromium Dioxide 83.995 gmol-1Clip Chromium Oxide 151.991 gmol-1Clip
Cobalt 58.9332 gmol-1Clip Cobalt II Bromide 218.74 gmol-1Clip Cobalt II Chloride 129.84 gmol-1Clip
Cobalt II Nitrate 182.94 gmol-1Clip Cobalt II Oxide 74.93 gmol-1Clip Cobalt III Oxide 165.9 gmol-1Clip
Copper 63.546 gmol-1Clip Copper I Bromide 143.45 gmol-1Clip Copper I Chloride 98.999 gmol-1Clip
Copper I Iodide 190.45 gmol-1Clip Copper I Sulphide 143.091 gmol-1Clip Copper II Bromide 223.354 gmol-1Clip
Copper II Hydroxide 97.59 gmol-1Clip Copper II Oxide 79.545 gmol-1Clip Copper II Sulphide 95.612 gmol-1Clip
Curium 247.0703 gmol-1Clip Decane 142.29 gmol-1Clip Deuterium 2.014102 gmol-1Clip
Diamond 12.011 gmol-1Clip Dichloromethane 84.93 gmol-1Clip Diethyl Ether 74.12 gmol-1Clip
Dodecane 170.34 gmol-1Clip Dysprosium 162.5 gmol-1Clip Einsteinium 252.0828 gmol-1Clip
Erbium 167.26 gmol-1Clip Ethane 30.07 gmol-1Clip Ethanol 46.07 gmol-1Clip
Europium 151.96 gmol-1Clip Fermium 257.0951 gmol-1Clip Fluorine 18.998403 gmol-1Clip
Formaldehyde 30.03 gmol-1Clip Francium 223.0197 gmol-1Clip Fused Silica 28.09 gmol-1Clip
Gadolinium 157.25 gmol-1Clip Gallium 69.723 gmol-1Clip Gallium II Selenide 148.69 gmol-1Clip
Gallium II Telluride 197.32 gmol-1Clip Gallium III Bromide 309.435 gmol-1Clip Gallium III Chloride 179.03 gmol-1Clip
Gallium III Fluoride 126.718 gmol-1Clip Gallium III Hydroxide 120.7437 gmol-1Clip Gallium III Iodide 450.436 gmol-1Clip
Gallium III Oxide 187.444 gmol-1Clip Gallium III Selenide 376.33 gmol-1Clip Gallium III Telluride 522.25 gmol-1Clip
Gallium Nitride 83.73 gmol-1Clip Gallium Phosphide 100.697 gmol-1Clip Germane 76.62 gmol-1Clip
Germanium 72.59 gmol-1Clip Germanium II Chloride 143.546 gmol-1Clip Germanium II Selenide 151.57 gmol-1Clip
Germanium IV Chloride 214.4 gmol-1Clip Germanium IV Oxide 104.61 gmol-1Clip Germanium IV Sulphide 136.74 gmol-1Clip
Germanium Monoxide 88.609 gmol-1Clip Germanium Telluride 200.21 gmol-1Clip Gold 196.9665 gmol-1Clip
Hafnium 178.49 gmol-1Clip Helium 4.002602 gmol-1Clip Hexane 86.18 gmol-1Clip
Holmium 164.9304 gmol-1Clip Hydrogen 1.00794 gmol-1Clip Hydrogen Cyanide 27.03 gmol-1Clip
Hydrogen I Selenide 80.976 gmol-1Clip Hydrogen I Telluride 129.616 gmol-1Clip Hydrogen Iodide 127.912 gmol-1Clip
Hydrogen Persulphide 66.148 gmol-1Clip Hydroxybutanedioic Acid 134.09 gmol-1Clip Indium 114.82 gmol-1Clip
Indium Antimonide 236.578 gmol-1Clip Indium Arsenide 189.74 gmol-1Clip Indium I Bromide 194.722 gmol-1Clip
Indium III Bromide 354.53 gmol-1Clip Indium III Chloride 221.18 gmol-1Clip Indium III Fluoride 171.82 gmol-1Clip
Indium III Oxide 277.64 gmol-1Clip Indium III Selenide 466.516 gmol-1Clip Indium III Sulphate 517.81 gmol-1Clip
Indium III Sulphide 325.82 gmol-1Clip Indium III Telluride 612.44 gmol-1Clip Indium Nitride 128.83 gmol-1Clip
Indium Phosphide 145.792 gmol-1Clip Iodine 126.9045 gmol-1Clip Iridium 192.22 gmol-1Clip
Iridium IV Fluoride 268.2109 gmol-1Clip Iridium IV Oxide 224.22 gmol-1Clip Iridium V Fluoride 287.209 gmol-1Clip
Iridium VI Fluoride 306.2 gmol-1Clip Iron 55.847 gmol-1Clip Iron II Chloride 126.75 gmol-1Clip
Iron II Oxide 71.844 gmol-1Clip Iron III Chloride 162.203 gmol-1Clip Iron III Oxide 159.688 gmol-1Clip
Iron Sulphide 87.911 gmol-1Clip Krypton 83.8 gmol-1Clip Lanthanum 138.9055 gmol-1Clip
Lanthanum Carbide 162.927 gmol-1Clip Lanthanum Carbonate 457.85 gmol-1Clip Lanthanum Hexaboride 203.78 gmol-1Clip
Lanthanum III Bromide 378.62 gmol-1Clip Lanthanum III Chloride 245.26 (anhydrous) gmol-1Clip Lanthanum III Oxide 325.81 gmol-1Clip
Lawrencium 260.1054 gmol-1Clip Lead 207.2 gmol-1Clip Lead II Sulphide 239.266 gmol-1Clip
Lithium 6.941 gmol-1Clip Lithium I Bromide 86.845 gmol-1Clip Lithium I Chloride 42.394 gmol-1Clip
Lithium I Fluoride 25.939 gmol-1Clip Lithium I Hydride 7.949 gmol-1Clip Lithium I Iodide 133.845 gmol-1Clip
Lithium I Nitride 34.83 gmol-1Clip Lithium I Oxide 29.881 gmol-1Clip Lithium I Peroxide 45.881 gmol-1Clip
Lithium Superoxide 38.94 gmol-1Clip Lutetium 174.967 gmol-1Clip Lutetium III Chloride 281.325 gmol-1Clip
Lutetium III Oxide 397.932 gmol-1Clip Magnesium 24.305 gmol-1Clip Magnesium Aspartate 288.494 gmol-1Clip
Magnesium Benzoate 266.53 gmol-1Clip Magnesium Bromide 184.113 gmol-1Clip Magnesium Carbonate 84.3139 gmol-1Clip
Magnesium Chloride 95.211 gmol-1Clip Magnesium Citrate 214.41 gmol-1Clip Magnesium Diboride 45.93 gmol-1Clip
Magnesium Hydride 26.3209 gmol-1Clip Magnesium Hydroxide 58.3197 gmol-1Clip Magnesium Iodide 278.1139 gmol-1Clip
Magnesium Nitrate 148.3 gmol-1Clip Magnesium Nitride 100.9494 gmol-1Clip Magnesium Perchlorate 223.206 gmol-1Clip
Magnesium Peroxide 56.3038 gmol-1Clip Magnesium Silicide 76.6955 gmol-1Clip Magnesium Stearate 591.27 gmol-1Clip
Magnesium Sulphate 120.415 gmol-1Clip Magnesium Sulphide 56.38 gmol-1Clip Magnesium Sulphite 104.3682 gmol-1Clip
Magnesium Trisilicate 260.862 gmol-1Clip Manganese 54.938 gmol-1Clip Manganese II Acetate 173.027 gmol-1Clip
Manganese IV Oxide 86.9368 gmol-1Clip Manganese VII Oxide 221.87 gmol-1Clip Mendelevium 258.098 gmol-1Clip
Mercury Hg 200.59 gmol-1Clip Mercury I Chloride 472.09 gmol-1Clip Mercury II Chloride 271.52 gmol-1Clip
Mercury II Oxide 216.5894 gmol-1Clip Methanoic Acid 46.0254 gmol-1Clip Methyl Acetate 74.08 gmol-1Clip
Molybdenum 95.94 gmol-1Clip Molybdenum Disilicide 152.11 gmol-1Clip Molybdenum Disulphide 160.07 gmol-1Clip
Molybdenum Hexacarbonyl 264 gmol-1Clip Molybdenum Hexafluoride 209.93 gmol-1Clip Molybdenum Trioxide 143.94 gmol-1Clip
Molybdenum V Chloride 273.21 gmol-1Clip Neodymium 144.24 gmol-1Clip Neodymium Aluminium Borate 460.42 gmol-1Clip
Neodymium III Oxide 336.48 gmol-1Clip Neon 20.179 gmol-1Clip Neptunium 237.0482 gmol-1Clip
Nickel 58.69 gmol-1Clip Niobium 92.9064 gmol-1Clip Nitrogen 14.0067 gmol-1Clip
Nitroglycerine 227.09 gmol-1Clip Nobelium 259.1009 gmol-1Clip Nonane 128.2 gmol-1Clip
Osmium 190.2 gmol-1Clip Oxalic Acid 90.03 gmol-1Clip Oxygen 15.9994 gmol-1Clip
Palladium 106.42 gmol-1Clip Pentanol 88.15 gmol-1Clip Phosphoric Acid 98 gmol-1Clip
Phosphorus 30.97376 gmol-1Clip Platinum 195.08 gmol-1Clip Plutonium 244.0642 gmol-1Clip
Polonium 208.9824 gmol-1Clip Polyvinyl Acetate 86.09 gmol-1Clip Potassium 39.0983 gmol-1Clip
Potassium Bromide 119.002 gmol-1Clip Potassium Carbonate 138.2055 gmol-1Clip Potassium Chloride 74.551 gmol-1Clip
Potassium Fluoride 58.097 gmol-1Clip Potassium Iodide 166.003 gmol-1Clip Potassium Oxide 94.196 gmol-1Clip
Potassium Peroxide 110.195 gmol-1Clip Potassium Sulphide 110.263 gmol-1Clip Potassium Superoxide 71.097 gmol-1Clip
Praseodymium 140.9077 gmol-1Clip Promethium 144.9128 gmol-1Clip Propane 44.11 gmol-1Clip
Propanol 60.1 gmol-1Clip Protactinium 231.0359 gmol-1Clip Putrescine 88.1516 gmol-1Clip
Radium 226.0254 gmol-1Clip Radon 222.0176 gmol-1Clip Rhenium 186.207 gmol-1Clip
Rhodium 102.9055 gmol-1Clip Rubidium 85.4678 gmol-1Clip Rubidium Bromide 165.372 gmol-1Clip
Rubidium Chloride 120.921 gmol-1Clip Rubidium Fluoride 104.466 gmol-1Clip Rubidium Hydride 86.476 gmol-1Clip
Rubidium Iodide 212.372 gmol-1Clip Rubidium Oxide 186.935 gmol-1Clip Rubidium Peroxide 202.934 gmol-1Clip
Rubidium Sulphide 203.002 gmol-1Clip Rubidium Superoxide 117.467 gmol-1Clip Ruthenium 101.07 gmol-1Clip
Samarium 150.36 gmol-1Clip Scandium 44.95591 gmol-1Clip Selenium 78.96 gmol-1Clip
Silane 32.12 gmol-1Clip Silicon 28.0855 gmol-1Clip Silicon Dioxide 60.0843 gmol-1Clip
Silicon Nitride 140.28 gmol-1Clip Silver 107.8682 gmol-1Clip Silver Bromide 187.78 gmol-1Clip
Silver Iodide 243.773 gmol-1Clip Silver Sulphide 247.802 gmol-1Clip Sodium 22.98977 gmol-1Clip
Sodium Carbonate 105.99 gmol-1Clip Sodium Chloride 58.45 gmol-1Clip Sodium Hydride 23.998 gmol-1Clip
Sodium Hydroxide 39.9971 gmol-1Clip Sodium Hypochlorite 74.4 gmol-1Clip Sodium I Bromide 102.894 gmol-1Clip
Sodium I Fluoride 41.988 gmol-1Clip Sodium I Iodide 149.894 gmol-1Clip Sodium I Oxide 54.989 gmol-1Clip
Sodium Nitrate 84.9947 gmol-1Clip Sodium Oxide 61.979 gmol-1Clip Sodium Peroxide 77.978 gmol-1Clip
Strontium 87.62 gmol-1Clip Styrene 104.15 gmol-1Clip Styrene Acrylonitrile 158.239 gmol-1Clip
Sulphur 32.066 gmol-1Clip Sulphur Hexafluoride 146.06 gmol-1Clip Sulphuric Acid 98.07848 gmol-1Clip
Tantalum 180.9479 gmol-1Clip Technetium 97.9072 gmol-1Clip Tellurium 127.6 gmol-1Clip
Terbium 158.9254 gmol-1Clip Tetrafluoromethane 88 gmol-1Clip Thallium 204.383 gmol-1Clip
Thorium 232.038 gmol-1Clip Thulium 168.9342 gmol-1Clip Tin 118.71 gmol-1Clip
Tin II Fluoride 156.707 gmol-1Clip Tin II Oxide 134.709 gmol-1Clip Tin IV Fluoride 194.704 gmol-1Clip
Tin IV Hydride 122.742 gmol-1Clip Tin IV Oxide 150.709 gmol-1Clip Titanium 47.88 gmol-1Clip
Titanium Carbide 59.89 gmol-1Clip Titanium Diboride 69.489 gmol-1Clip Titanium Dioxide 79.866 gmol-1Clip
Titanium Hydride 49.883 gmol-1Clip Titanium II Chloride 118.77 gmol-1Clip Titanium II Oxide 63.866 gmol-1Clip
Titanium II Sulphide 79.933 gmol-1Clip Titanium III Chloride 154.225 gmol-1Clip Titanium III Fluoride 104.88 gmol-1Clip
Titanium IV Fluoride 123.861 gmol-1Clip Titanium Nitride 61.874 gmol-1Clip Trichlorofluoromethane 137.37 gmol-1Clip
Tritium 3.016049 gmol-1Clip Tungsten 183.85 gmol-1Clip Undecane 156.31 gmol-1Clip
Unnilhexium 263 gmol-1Clip Unnilpentium 262 gmol-1Clip Unnilquadium 261 gmol-1Clip
Unnilseptium 262 gmol-1Clip Uranium 238.0289 gmol-1Clip Vanadium 50.9415 gmol-1Clip
Vinyl Acetate 86.09 gmol-1Clip Xenon 131.29 gmol-1Clip Ytterbium 173.04 gmol-1Clip
Yttrium 88.9059 gmol-1Clip Zinc 65.39 gmol-1Clip Zinc Oxide 81.4 gmol-1Clip
Zinc Sulphate 161.4476 gmol-1Clip Zingiberene 204.35 gmol-1Clip Zirconium 91.224 gmol-1Clip
Zirconium Oxide 107.2 gmol-1Clip<
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See also: Atomic weight, Ebulliometry, Molecule.

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