Chemical formulae provide a way to represent any chemical substance using the symbol of the elements present in it. Provided below is a list of the chemical formulas of some common chemical compounds (along with their molecular weights).
| Compound name | Molecular weight | Molecular formula | |
| 1 | Acetic acid | 60.052 g/mol | CH3COOH |
| 2 | Hydrochloric acid | 36.458 g/mol | HCl |
| 3 | Sulfuric acid | 98.072 g/mol | H2SO4 |
| 4 | Acetate | 59.044 g/mol | CH3COO– |
| 5 | Ammonia | 17.031 g/mol | NH3 |
| 6 | Nitric acid | 63.012 g/mol | HNO3 |
| 7 | Phosphoric acid | 97.994 g/mol | H3PO4 |
| 8 | Sodium phosphate | 119.976 g/mol | Na3PO4 |
| 9 | Calcium carbonate | 100.086 g/mol | CaCO3 |
| 10 | Ammonium sulfate | 132.134 g/mol | (NH4)2SO4 |
| 11 | Carbonic acid | 62.024 g/mol | H2CO3 |
| 12 | Sodium bicarbonate | 84.0066 g/mol | NaHCO3 |
| 13 | Sodium hydroxide | 39.997 g/mol | NaOH |
| 14 | Calcium hydroxide | 74.092 g/mol | Ca(OH)2 |
| 15 | Ethanol | 46.069 g/mol | C2H5OH |
| 16 | Hydrobromic acid | 80.912 g/mol | HBr |
| 17 | Nitrous acid | 47.013 g/mol | HNO2 |
| 18 | Potassium hydroxide | 56.11 g/mol | KOH |
| 19 | Silver nitrate | 169.872 g/mol | AgNO3 |
| 20 | Sodium carbonate | 105.988 g/mol | Na2CO3 |
| 21 | Sodium chloride | 58.44 g/mol | NaCl |
| 22 | Cellulose | 162.1406 g/mol | (C6H10O5)n |
| 23 | Magnesium hydroxide | 58.319 g/mol | Mg(OH)2 |
| 24 | Methane | 16.043 g/mol | CH4 |
| 25 | Nitrogen dioxide | 30.006 g/mol | NO2 |
| 26 | Sodium nitrate | 84.994 g/mol | NaNO3 |
| 27 | Sulfurous acid | 82.073 g/mol | H2SO3 |
| 28 | Aluminium sulfate | 342.15 g/mol | Al2(SO4)3 |
| 29 | Aluminum oxide | 101.96 g/mol | Al2O3 |
| 30 | Ammonium nitrate | 80.043 g/mol | NH4NO3 |
| 31 | Ammonium phosphate | 132.056 g/mol | (NH4)3PO4 |
| 32 | Barium hydroxide | 171.341 g/mol | Ba(OH)2 |
| 33 | Carbon tetrachloride | 153.811 g/mol | CCl4 |
| 34 | Citric acid | 192.123 g/mol | C6H8O7 |
| 35 | Hydrocyanic acid | 27.026 g/mol | HCN |
| 36 | Salicylic Acid | 138.121 g/mol | C7H6O3 |
| 37 | Hydroiodic acid | 127.91 g/mol | HI |
| 38 | Hypochlorous acid | 52.457 g/mol | HClO |
| 39 | Iron iii oxide | 159.687 g/mol | Fe2O3 |
| 40 | Magnesium phosphate | 262.855 g/mol | Mg3(PO4)2 |
| 41 | Sodium acetate | 82.0343 g/mol | C2H3NaO2 |
| 42 | Sodium sulfate | 142.036 g/mol | Na2SO4 |
| 43 | Sucrose | 342.2965 g/mol | C12H22O11 |
| 44 | Potassium nitrate | 101.102 g/mol | KNO3 |
| 45 | Ammonium bicarbonate | 96.086 g/mol | NH4HCO3 |
| 46 | Ammonium chloride | 53.489 g/mol | NH4Cl |
| 47 | Ammonium hydroxide | 35.046 g/mol | NH4OH |
| 48 | Calcium nitrate | 164.088 g/mol | Ca(NO3)2 |
| 49 | Calcium oxide | 56.0774 g/mol | CaO |
| 50 | Carbon monoxide | 28.01 g/mol | CO |
| 51 | Chlorine gas | 70.9 g/mol | Cl2 |
| 53 | Phenol | 94.11 g/mol | C6H6O |
| 54 | Hydrogen peroxide | 34.0147 g/mol | H2O2 |
| 55 | Hydroxide | 17.007 g/mol | OH– |
| 56 | Magnesium chloride | 95.211 g/mol | MgCl2 |
| 57 | Potassium chloride | 74.5513 g/mol | KCl |
| 58 | Potassium iodide | 166.0028 g/mol | KI |
| 59 | Sulfur dioxide | 64.066 g/mol | SO2 |
| 60 | Glycerin | 92.09 g/mol | C3H8O3 |
| 61 | Barium nitrate | 261.337 g/mol | Ba(NO3)2 |
| 62 | Calcium acetate | 158.17 g/mol | C4H6O4Ca |
| 63 | Iron oxide | 159.69 g/mol | Fe2O3 |
| 64 | Potassium carbonate | 138.205 g/mol | K2CO3 |
| 65 | Silver chloride | 143.318 g/mol | AgCl |
| 66 | Sodium iodide | 149.894 g/mol | NaI |
| 67 | Sodium oxide | 61.9789 g/mol | Na2O |
| 68 | Sodium sulfide | 78.0452 g/mol | Na2S |
| 69 | Zinc nitrate | 189.388 g/mol | Zn(NO3)2 |
| 70 | Phenolphthalein | 318.32 g/mol | C20H14O4 |
| 71 | Magnesium nitrate | 148.313 g/mol | Mg(NO3)2 |
| 72 | Silicon dioxide | 60.083 g/mol | SiO2 |
| 73 | Acetone | 58.08 g/mol | C3H6O |
| 74 | Hydroquinone | 110.11 g/mol | C6H6O2 |
| 75 | Pyridine | 79.1 g/mol | C5H5N |
| 76 | Ammonium acetate | 77.083 g/mol | C2H3O2NH4 |
| 77 | Xylene | 106.16 g/mol | C8H10 |
| 78 | Barium sulfate | 233.38 g/mol | BaSO4 |
| 79 | Benzene | 78.11 g/mol | C6H6 |
| 80 | Bicarbonate | 61.016 g/mol | CHO3– |
| 81 | Chromate | 15.992 g/mol | CrO42- |
| 82 | Methyl Ethyl Ketone | 72.107 g/mol | C4H8O |
| 83 | Cyanide | 26.02 g/mol | CN− |
| 84 | Trichloroacetic acid | 163.38 g/mol | C2HCl3O2 |
| 85 | Magnesium sulfate | 120.361 g/mol | MgSO4 |
| 86 | Methanol | 32.04 g/mol | CH3OH |
| 87 | Oxygen | Atomic mass 15.999 g/mol | O |
| 88 | Methylene blue | 319.85 g/mol | C16H18ClN3S |
| 89 | Sodium sulfite | 126.043 g/mol | Na2SO3 |
| 90 | Sulfur trioxide | 80.057 g/mol | SO3 |
| 91 | Aluminum phosphate | 121.951 g/mol | AlPO4 |
| 92 | Stearic acid | 284.484 g/mol | C18H36O2 |
| 93 | Dinitrogen monoxide | 44.013 g/mol | N2O |
| 94 | Titanium dioxide | 233.38 g/mol | TiO2 |
| 95 | Acetonitrile | 41.053 g/mol | C2H3N |
| 96 | Oxalic acid | 90.03 g/mol | H2C2O4 |
| 97 | Potassium dichromate | 294.185 g/mol | K2Cr2O7 |
| 98 | Sodium bromide | 102.894 g/mol | NaBr |
| 99 | Sodium hypochlorite | 74.439 g/mol | NaClO |
| 100 | Zinc acetate | 183.48 g/mol | Zn(CH3COO)2(H2O)2 |
| 101 | Zinc chloride | 136.286 g/mol | ZnCl2 |
| 102 | Zinc hydroxide | 99.424 g/mol | Zn(OH)2 |
| 103 | Magnesium carbonate | 84.313 g/mol | MgCO3 |
| 104 | Potassium chlorate | 122.545 g/mol | KClO3 |
| 105 | Hydrazine | 32.0452 g/mol | N2H4 |
| 106 | Ascorbic acid | 176.12 g/mol | C6H8O6 |
| 107 | Benzoic acid | 122.12 g/mol | C7H6O2 |
| 108 | Resorcinol | 110.1 g/mol | C6H6O2 |
| 109 | Chlorine | 70.9 g/mol | Cl2 |
| 110 | Maleic acid | 116.072 g/mol | C4H4O4 |
| 111 | Sodium metabisulfite | 190.107 g/mol | Na2S2O5 |
| 112 | Acetamide | 59.068 g/mol | C2H5NO |
| 113 | Sodium silicate | 122.062 g/mol | (Na2O)x·SiO2 |
| 114 | Nitrite | 46.005 g/mol | NO2− |
| 115 | Phosphate | 94.9714 g/mol | PO43- |
| 116 | Dichloromethane | 84.93 g/mol | CH2Cl2 |
| 117 | Carbon Disulfide | 76.13 g/mol | CS2 |
| 118 | Potassium chromate | 194.189 g/mol | CrK2O4 |
| 119 | Zinc sulfate | 161.436 g/mol | ZnSO4 |
| 120 | Iodine | Atomic mass 126.90 g/mol | I |
| 121 | Tannic acid | 1701.19 g/mol | C76H52O46 |
| 122 | Aluminum | 26.982 g/mol | Al |
| 123 | Perchloric acid | 100.46 g/mol | HClO4 |
| 124 | Hypochlorite | 51.449 g/mol | ClO– |
| 125 | Potassium Bromide | 119.002 g/mol | KBr |
| 126 | Chromic acid | 118.01 g/mol | H2CrO4 |
| 127 | Dihydrogen monoxide | 18.01528 g/mol | OH2 |
| 128 | Methyl acetate | 74.079 g/mol | C3H6O2 |
| 129 | Dimethyl sulfoxide | 78.13 g/mol | C2H6OS |
| 130 | Hexane | 86.18 g/mol | C6H14 |
| 131 | Eugenol | 164.2 g/mol | C10H12O2 |
| 132 | Manganese dioxide | 86.9368 g/mol | MnO2 |
| 133 | Lactic acid | 90.078 g/mol | C3H6O3 |
| 134 | Sodium potassium tartrate | 282.1 g/mol | C4H4O6KNa·4H2O |
| 135 | Hexamine | 140.186 g/mol | C6H12N4 |
| 136 | Lithium hydroxide | 23.95 g/mol | LiOH |
| 137 | Phosphorus pentachloride | 208.24 g/mol | PCl5 |
| 138 | Potassium oxide | 94.2 g/mol | K2O |
| 139 | Monopotassium phosphate | 136.084 g/mol | KH2PO4 |
| 140 | Silver acetate | 166.91 g/mol | AgC2H3O2 |
| 141 | Sodium citrate | 258.06 g/mol | Na3C6H5O7 |
| 142 | Sodium fluoride | 41.98817 g/mol | NaF |
| 143 | Sodium nitrite | 68.9953 g/mol | NaNO2 |
| 144 | Sulfate ion | 96.06 g/mol | SO42− |
| 145 | Barium carbonate | 197.34 g/mol | BaCO3 |
| 146 | Calcium iodide | 293.887 g/mol | CaI2 |
| 147 | Hydrogen sulfate | 97.064 g/mol | HSO4– |
| 148 | Lithium oxide | 29.88 g/mol | Li2O |
| 149 | Dimethylglyoxime | 116.12 g/mol | C4H8N2O2 |
| 150 | Potassium Permanganate | 158.034 g/mol | KMnO4 |
| 151 | Silver phosphate | 418.58 g/mol | Ag3PO4 |
| 152 | Ammonium bromide | 97.943 g/mol | NH4Br |
| 153 | Calcium phosphate | 310.18 g/mol | Ca3(PO4)2 |
| 154 | Dichromate | 294.185 g/mol | K2Cr2O7 |
| 155 | Aluminum sulfide | 150.158 g/mol | Al2S3 |
| 156 | Ammonium carbonate | 96.086 g/mol | (NH4)2CO3 |
| 157 | Barium chloride | 208.23 g/mol | BaCl2 |
| 158 | Nitrogen monoxide | 30.006 g/mol | NO |
| 159 | Fructose | 180.16 g/mol | C6H12O6 |
| 160 | Magnesium iodide | 278.1139 g/mol | MgI2 |
| 161 | Magnesium sulfide | 56.38 g/mol | MgS |
| 162 | Ozone | 48 g/mol | O3 |
| 163 | Potassium cyanide | 65.12 g/mol | KCN |
| 164 | Silver oxide | 231.735 g/mol | Ag2O |
| 165 | Sodium chromate | 161.97 g/mol | Na2CrO4 |
| 166 | Sodium peroxide | 77.98 g/mol | Na2O2 |
| 167 | Toluene | 92.14 g/mol | C7H8 |
| 168 | Zinc carbonate | 125.388 g/mol | ZnCO3 |
| 169 | Zinc phosphate | 386.11 g/mol | Zn3(PO4)2 |
| 170 | Zinc sulfide | 97.474 g/mol | ZnS |
| 171 | Para dichlorobenzene | 147.01 g/mol | C6H4Cl2 |
| 172 | Boric acid | 61.83 g/mol | H3BO3 |
| 173 | Oxalate | 88.018 g/mol | C2O42− |
| 174 | Potassium bicarbonate | 100.114 g/mol | KHCO3 |
| 175 | Potassium hypochlorite | 90.55 g/mol | KClO |
| 176 | Potassium nitrite | 85.103 g/mol | KNO2 |
| 177 | Bromothymol Blue | 624.384 g/mol | C27H28Br2O5S |
| 178 | Ammonium iodide | 144.94 g/mol | NH4I |
| 179 | Ammonium nitrite | 64.06 g/mol | NH4NO2 |
| 180 | Ammonium oxide | 52.0763 g/mol | (NH4)2O |
| 181 | Argon gas | 39.948 g/mol | Ar |
| 182 | Barium bromide | 297.14 g/mol | BaBr2 |
| 183 | Barium iodide | 391.136 g/mol | BaI2 |
| 184 | Bromate | 127.901 g/mol | BrO3– |
| 185 | Dinitrogen trioxide | 76.01 g/mol | N2O3 |
| 186 | Ethylene glycol | 62.07 g/mol | C2H6O2 |
| 187 | Nickel sulfate | 154.75 g/mol | NiSO4 |
| 188 | Helium | atomic mass 4.002602 u | He |
| 189 | Iodide | 253.809 g/mol | I– |
| 190 | Lead ii acetate | 325.29 g/mol | Pb(C2H3O2)2 |
| 191 | Lithium chloride | 42.394 g/mol | LiCl |
| 192 | Phosphate ion | 94.9714 g/mol | PO43- |
| 193 | Potassium fluoride | 58.0967 g/mol | KF |
| 194 | Potassium sulfite | 158.26 g/mol | K2SO3 |
| 195 | Silver carbonate | 275.7453 g/mol | Ag2CO3 |
| 196 | Sodium cyanide | 49.0072 g/mol | NaCN |
| 197 | Sodium nitride | 82.976 g/mol | Na3N |
| 198 | Strontium chloride | 158.52 g/mol | SrCl2 |
| 199 | Strontium nitrate | 211.628 g/mol | Sr(NO3)2 |
| 200 | Urea | 60.056 g/mol | CH4N2O |
| 201 | Bleach | 74.439 g/mol | NaClO |
| 202 | Lithium bromide | 86.844 g/mol | LiBr |
| 203 | Aluminum fluoride | 83.9767 g/mol | AlF3 |
| 204 | Barium fluoride | 175.34 g/mol | BaF2 |
| 205 | Butanoic acid | 88.11 g/mol | C4H8O2 |
| 206 | Calcium hydride | 42.094 g/mol | CaH2 |
| 207 | Copper ii carbonate | 123.55 g/mol | CuCO3 |
| 208 | Fluorine | 18.998403 u | F |
| 209 | Lithium phosphate | 115.79 g/mol | Li3PO4 |
| 210 | Glycerol | 92.09382 g/mol | C3H8O3 |
| 211 | Hypobromous acid | 96.911 g/mol | HBrO |
| 212 | Hypoiodous acid | 143.89 g/mol | HIO |
| 213 | Lead iodide | 461.01 g/mol | PbI2 |
| 214 | Lithium iodide | 133.844 g/mol | LiI |
| 215 | Magnesium oxide | 40.3044 g/mol | MgO |
| 216 | Urethane | 89.09 g/mol | C3H7NO2 |
| 217 | Nickel nitrate | 182.703 g/mol | Ni(NO3)2 |
| 218 | Sodium dichromate | 261.97 g/mol | Na2Cr2O7 |
| 219 | Tartaric acid | 150.087 g/mol | C4H6O6 |
| 220 | Zinc iodide | 319.22 g/mol | ZnI2 |
| 221 | Bromine | 54.9380 g/mol | Br |
| 222 | Aluminum bromide | 266.69 g/mol | AlBr3 |
| 223 | Sodium Percarbonate | 157.01 g/mol | C2H6Na4O12 |
| 224 | Nickel acetate | 178.797 g/mol | C4H6O4Ni |
| 225 | Sodium Thiosulfate | 158.11 g/mol | Na2S2O3 |
| 226 | Acetaldehyde | 44.05 g/mol | C2H4O |
| 227 | Copper sulfate | 159.609 g/mol | CuSO4 |
| 228 | Mannitol | 182.172 g/mol | C6H14O6 |
| 229 | Calcium Chloride | 110.98 g/mol | CaCl2 |
| 230 | Monosodium Glutamate | 169.111 g/mol | C5H8NO4Na |
| 231 | Polystyrene | 104.1 g/mol | (C8H8)n |
| 232 | Calcium Carbide | 64.099 g/mol | CaC2 |
| 233 | Tetrachloroethylene | 165.83 g/mol | C2Cl4 |
| 234 | Sodium Chlorate | 106.44 g/mol | NaClO3 |
| 235 | Potassium Iodate | 214.001 g/mol | KIO3 |
| 236 | Lead Acetate | 325.29 g/mol | Pb(C2H3O2)2 |
| 237 | Potassium Thiocyanate | 97.181 g/mol | KSCN |
| 238 | Butane | 58.12 g/mol | C4H10 |
| 239 | Maltose | 342.3 g/mol | C12H22O11 |
| 240 | Polyurethane Foam | 548.589 g/mol | C27H36N2O10 |
| 241 | Formaldehyde | 30.031 g/mol | CH2O |
| 242 | Formic Acid | 46.03 g/mol | HCOOH |
| 243 | Sulfur Hexafluoride | 146.06 g/mol | SF6 |
| 244 | Phosphorus Trichloride | 137.33 g/mol | PCl3 |
| 245 | Ethane | 30.07 g/mol | C2H6 |
| 246 | Dinitrogen Pentoxide | 30.07 g/mol | N2O5 |
| 247 | Phosphorous Acid | 82 g/mol | H3PO3 |
| 248 | Potassium Ferrocyanide | 368.35 g/mol | K4Fe(CN)6 |
| 249 | Xenon Difluoride | 169.29 g/mol | XeF2 |
| 250 | Diatomic Bromine | 159.808 g/mol | Br2 |
| 251 | Phenyl | 77.106 g/mol | C6H5 |
| 252 | Phosphorus Triiodide | 411.6872 g/mol | PI3 |
| 253 | Peroxydisulfuric Acid | 194.14 g/mol | H2S2O8 |
| 254 | Dipotassium Phosphate | 174.2 g/mol | K2HPO4 |
| 255 | Aluminium hydroxide | 78.00 g/mol | Al(OH)3 |
| 256 | Ammonium persulfate | 228.18 g/mol | (NH4)2S2O8 |
| 257 | Sodium borate | 201.22 g/mol | Na2[B4O5(OH)4]·8H2O |
| 258 | Chloroacetic acid | 94.49 g/mol | C2H3O2Cl |
| 259 | Potassium acetate | 98.142 g/mol | CH3CO2K |
| 260 | Barium oxide | 153.326 g/mol | BaO |
| 261 | Copper(I) Oxide | 143.09 g/mol | Cu2O |
| 262 | Copper Hydroxide | 97.561 g/mol | Cu(OH)2 |
| 263 | Tin Oxide | 97.561 g/mol | SnO2 |
| 264 | Chlorine Trifluoride | 92.448 g/mol | ClF3 |
| 265 | Ethylene | 28.054 g/mol | C2H4 |
| 266 | Acetylene | 26.038 g/mol | C2H2 |
| 267 | Chromic Oxide | 151.9904 g/mol | Cr2O3 |
| 268 | Sodium bisulfate | 120.06 g/mol | NaHSO4 |
| 269 | Copper (II) chloride | 134.45 g/mol | CuCl2 |
| 270 | Mercuric chloride | 271.52 g/mol | HgCl2 |
| 271 | Tin (II) chloride | 189.60 g/mol | SnCl2 |
| 272 | Propane | 44.097 g/mol | C3H8 |
| 273 | Lead (IV) oxide | 239.1988 g/mol | PbO2 |
Recommended Videos
To learn about the different types of reactions check out the reference links given below. Reference links:
| Displacement reaction |
| Synthesis reaction |
| Decomposition reaction |
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