Chemical Formula Of Common Compounds

Chemistry is said to be a subject mostly comprising of reactions along with formulas. We come across various chemical substances in our daily life. Some of the substances we use in our house such as the staples present in the medicine cabinet comprise chemical substances. All these chemicals are bound up with atoms in a fixed proportion and also these are arranged in a certain way. So, to figure out what kind of proportions are these and their arrangement within the substance, the chemical formula is more needed.

The chemical formula gives us a clear understanding regarding the chemical substances, like how many and what the chemical elements of the Periodic table consists of, along with the way of they are arranged. There are about some chemistry formulas coming in the chemistry as given below.

Chemical Formula Of Common Compounds

Importance of Chemistry Formulas

Chemical Formula in Chemistry is like a shorthand used to represent the elements in a compound. The Periodic Table has elements along with the symbols. These Chemical symbols are used for representing different individual elements like H is hydrogen, O for oxygen, Ca for calcium, Na for Sodium and so on. The Substances which have more than two or more atoms bonded together, and also more than one or more elements are called as compounds. Hence to know the nature of these chemical compounds and their reactions, chemistry formulas play a vital role. It gives an idea of how a substance has formed and the proportion of elements involved in that particular reaction.

Types of Chemistry Formulas or Chemical Formula

In chemistry, there are a various number of iterations of the chemical formula of a compound, some of them are given below.

Molecular Formula:

The molecular formula gives you the number of elements present in a compound. In this formula, the elements are written in the form of their symbols as in the periodic table where the number of atoms is written as a subscript. For example- the molecular formula for glucose is written as C6H12O6.

Empirical Formula:

This formula tells about the ratio of the elements present in a compound. This formula is usually obtained based on the analysis of experimental data. The empirical formula for glucose is written as CH2O. Empirical Formulas are usually said to be derived from the molecular formulas.

Structural Formula:

As the name tells you, the structural formula provides an idea of how the atoms in the molecule or the compound are arranged along with their bond formations.

How to write Chemical Formula

In order to write a chemical formula, it is important to know the symbol of the elements present in the compound, formula of the radicals and the valency of the elements in that compound. Following points should be kept in mind while writing a chemical formula.

  • Most of the compounds are binary compounds i.e. they have two elements. Compounds with more than two elements are also known.
  • An atom with a positive charge is called as a cation whereas an atom with the negative charge is called as an anion.
  • For a compound containing a metal and a non-metal, the metal is named first followed by the non-metal. For example: NaCl which consists of Na+ (metal ion) and Cl (non-metal ion)
  • Anions having -1 negative charge usually have a suffix as –ide. For example: F – Floride
  • Anions having oxy anions (oxygen + another element) usually have a suffix as –ate. For example – SO42- (Sulphate)
  • When a polyatomic anion has H ion, bi- or hydrogen is used as a suffix. For example – HCO3-Bicarbonate or hydrogen carbonate
  • Some polyatomic anions can be named as:
  • Chemical Formula Polyatomic Anion
    NH2 Amide
    PO43- Phosphate
    CN Cyanide

List of Chemical Compound Formula

There are several chemical formula, however, here are the list of most important Chemical Formula.


Name of the Chemical Compound


1 Acetic acid formula CH3COOH
2 Aaluminum hydroxide formula Al(OH)3
3 Acetate formula CH3COO-
4 Acetone formula C3H6O
5 Aluminum acetate formula Al2O(C2H3O2)4
6 Aluminum bromide formula AlBr3
7 Aluminum carbonate formula Al2(CO3)3
8 Aluminum chloride formula AlCl3
9 Aluminum fluoride formula AlF3
10 Aluminum formula Al
11 Aluminum iodide formula AlI3
12 Aluminum oxide formula Al2O3
13 Aluminum phosphate formula AlPO4
14 Amino acid formula R(NH2)-COOH
15 Ammonia chemical formula NH4
16 Ammonia formula NH3
17 Ammonium acetate formula C2H3O2NH4
18 Ammonium bicarbonate formula NH4HCO3
19 Ammonium bromide formula NH4Br
20 Ammonium carbonate formula (NH4)2CO3
21 Ammonium chloride formula NH4Cl
22 Ammonium hydroxide formula NH4OH
23 Ammonium iodide formula NH4I
24 Ammonium nitrate chemical formula (NH4)(NO3)
25 Ammonium nitrate formula NH4NO3
26 Ammonium nitrite formula NH4NO2
27 Ammonium oxide formula (NH4)2O
28 Ammonium phosphate formula (NH4)3PO4
29 Ammonium sulfate formula (NH4)2SO4
30 Ammonium sulfide formula (NH4)2S
31 Argon gas formula Ar
32 Ascorbic acid formula C6H8O6
33 Barium acetate formula Ba(C2H3O2)2
34 Barium bromide formula BaBr2
35 Barium chloride formula BaCl2
36 Barium fluoride formula BaF2
37 Barium hydroxide formula Ba(OH)2
38 Barium iodide formula BaI2
39 Barium nitrate formula Ba(NO3)2
40 Barium oxide formula BaO
41 Barium phosphate formula Ba3O8P2
42 Barium sulfate formula BaSO4
43 Benzene formula C6H6
44 Benzoic acid formula C7H6O2
45 Bicarbonate formula CHO3-
46 Bleach formula NaClO
47 Boric acid formula H3BO3
48 Bromate formula Br
49 Bromic acid formula HBrO3
50 Bromine gas formula Br2
51 Butane formula C4H10
52 Butanoic acid formula C4H8O2
53 Calcium acetate formula Ca(COO-)2
54 Calcium bromide formula CaBr2
55 Calcium carbonate formula CaCO3
56 Calcium hydride formula CaH2
57 Calcium hydroxide formula Ca(OH)2
58 Calcium iodide formula CaI2
59 Calcium nitrate formula Ca(NO3)2
60 Calcium oxide formula CaO
61 Carbon monoxide formula CO
62 Carbon tetrachloride formula CCl4
63 Carbonic acid formula H2CO3
64 Chemical formula for calcium phosphate Ca3(PO4)2
65 Chemical formula for carbonic acid H2CO3
66 Chemical formula for citric acid C6H8O7
67 Chlorate formula ClO-3
68 Chlorine formula Cl2
69 Chlorine gas formula Cl2
70 Chlorous acid formula HClO2
71 Chromate formula CrO42-
72 Chromic acid formula H2CrO4
73 Citric acid formula C6H8O7
74 Copper ii carbonate formula CuCO3
75 Copper ii nitrate formula Cu(NO3)2
76 Cyanide formula CN-
77 Dichromate formula K2Cr2O7
78 Dihydrogen monoxide formula H2O
79 Dinitrogen monoxide formula N2O
80 Dinitrogen pentoxide formula N2O5
81 Dinitrogen trioxide formula N2O3
82 Ethanol formula C2H5OH
83 Ethanol structural formula CH3CH2OH
84 Ethylene glycol formula C2H6O2
85 Fluorine gas formula F2
86 Formula for aluminum bromide AlBr3
87 Formula for aluminum sulfide Al2S3
88 Formula for ammonium carbonate (NH4)2CO3
89 Formula for ammonium nitrate (NH4)(NO3)
90 Formula for ammonium phosphate (NH4)3PO4
91 Formula for barium chloride BaCl2
92 Formula for barium sulfate BaSO4
93 Formula for calcium nitrate Ca(NO3)2
94 Formula for carbon monoxide CO
95 Formula for carbon tetrachloride CCl4
96 Formula for carbonic acid H2CO3
97 Formula for hydrofluoric acid HF
98 Formula for hydroiodic acid HI
99 Formula for hypochlorous acid HClO
100 Formula for lithium phosphate Li3PO4
101 Formula for magnesium nitrate MgNO3
102 Formula for magnesium phosphate Mg3(PO4)2
103 Formula for nitrogen monoxide NO
104 Formula for nitrous acid HNO2
105 Formula for potassium carbonate K2CO3
106 Formula for potassium iodide KI
107 Formula for potassium nitrate KNO3
108 Formula for potassium phosphate KH2PO4
109 Formula for sodium carbonate Na2CO3
110 Formula for sodium oxide Na2O
111 Fructose chemical formula C6H12O6
112 Glycerol formula C3H8O3
113 Helium gas formula He
114 Hexane formula C6H14
115 Hydrobromic acid formula HBr
116 Hydrochloric acid formula HCl
117 Hydrocyanic acid formula HCN
118 Hydrofluoric acid formula HF
119 Hydrogen carbonate formula CHO3-
120 Hydrogen gas formula H2
121 Hydrogen peroxide formula H2O2
122 Hydrogen phosphate formula H3PO4
123 Hydrogen sulfate formula HSO4-
124 Hydroiodic acid formula HI
125 Hydrosulfuric acid formula H2SO4
126 Hydroxide formula OH-
127 Hypobromous acid formula HBrO
128 Hypochlorite formula NaClO
129 Hypochlorous acid formula HClO
130 Hypoiodous acid formula HIO
131 Iodic acid formula HIO3
132 Iodide formula I2
133 Iodine formula I2
134 Iron ii nitrate formula Fe(NO3)3
135 Iron ii oxide formula FeO
136 Iron iii carbonate formula Fe2(CO3)3
137 Iron iii hydroxide formula HFeO2
138 Iron iii oxide formula Fe2O3
139 Iron oxide formula Fe2O3
140 Lactic acid formula C3H6O3
141 Lead acetate formula Pb(C2H3O2)2
142 Lead ii acetate formula Pb(C2H3O2)2
143 Lead iodide formula PbI2
144 Lead iv oxide formula PbO2
145 Lead nitrate formula Pb(NO3)2
146 Lithium bromide formula LiBr
147 Lithium chloride formula LiCl2
148 Lithium hydroxide formula LiOH
149 Lithium iodide formula LiI2
150 Lithium oxide formula Li2O
151 Lithium phosphate formula Li3PO4
152 Magnesium acetate formula Mg(CH3COO)2
153 Magnesium bicarbonate formula MgCO3
154 Magnesium carbonate formula MgCO3
155 Magnesium chloride formula MgCl2
156 Magnesium hydroxide formula Mg(OH)3
157 Magnesium iodide formula MgI2
158 Magnesium nitrate formula Mg(NO3)2
159 Magnesium nitride formula Mg3N2
160 Magnesium oxide chemical formula MgO
161 Magnesium oxide formula MgO
162 Magnesium phosphate chemical formula Mg3PO4
163 Magnesium phosphate formula Mg3(PO4)2
164 Magnesium sulfate formula MgSO4
165 Magnesium sulfide formula MgS
166 Methane formula CH4
167 Methanol formula CH3OH
168 Nickel acetate formula Ni(C2H3O2)2
169 Nickel nitrate formula Ni(NO3)2
170 Nitric acid formula HNO3
171 Nitride formula N3
172 Nitrite formula NO2−
173 Nitrogen dioxide formula NO2
174 Nitrogen monoxide formula NO
175 Nitrous acid formula HNO2
176 Oxalate formula C2O42−
177 Oxalic acid formula H2C2O4
178 Oxygen gas formula O2
179 Ozone formula O3
180 Perbromic acid formula HBrO4
181 Permanganate formula KMnO4
182 Permanganate ion formula MnO4-
183 Phosphate chemical formula PO43-
184 Phosphate formula PO4-
185 Phosphate ion formula PO43-
186 Phosphoric acid formula H3PO4
187 Phosphorus pentachloride formula PCl5
188 Phosphorus trichloride formula PCl3
189 Potassium acetate formula CH3CO2K
190 Potassium bicarbonate formula KHCO3
191 Potassium carbonate formula K2CO3
192 Potassium chlorate formula KClO3
193 Potassium chloride chemical formula KCl
194 Potassium chloride formula KCl
195 Potassium chromate formula CrK2O4
196 Potassium cyanide formula KCN
197 Potassium dichromate formula K2Cr2O7
198 Potassium fluoride formula KF
199 Potassium hydroxide formula KOH
200 Potassium hypochlorite formula KClO3
201 Potassium iodide formula KI
202 Potassium nitrate chemical formula KNO3
203 Potassium nitrate formula KNO3
204 Potassium nitrite formula KNO2
205 Potassium oxide formula K2O
206 Potassium phosphate chemical formula KH2PO4
207 Potassium phosphate formula KH2PO4
208 Potassium sulfite formula K2SO3
209 Salicylic acid formula C7H6O3
210 Silicon dioxide formula SiO2
211 Silver acetate formula AgC2H3O2
212 Silver carbonate formula Ag2CO3
213 Silver chloride formula AgCl
214 Silver nitrate formula AgNO3
215 Silver oxide formula Ag2O
216 Silver phosphate formula Ag3PO4
217 Sodium acetate formula C2H3NaO2
218 Sodium bicarbonate formula NaHCO3
219 Sodium bromide formula NaBr
220 Sodium carbonate chemical formula Na2CO3
221 Sodium carbonate formula Na2CO3
222 Sodium chloride formula NaCl
223 Sodium chromate formula Na2CrO4
224 Sodium citrate formula Na3C6H5O7
225 Sodium cyanide formula NaCN
226 Sodium dichromate formula Na2Cr2O7
227 Sodium fluoride formula NaF
228 Sodium hydroxide formula NaOH
229 Sodium hypochlorite formula NaClO
230 Sodium iodide formula NaI
231 Sodium nitrate chemical formula NaNO3
232 Sodium nitrate formula NaNO3
233 Sodium nitride formula Na3N
234 Sodium nitrite formula NaNO2
235 Sodium oxide formula Na2O
236 Sodium peroxide formula Na2O2
237 Sodium phosphate formula Na3PO4
238 Sodium sulfate formula Na2SO4
239 Sodium sulfide formula Na2S
240 Sodium sulfite formula Na2SO3
241 Strontium chloride formula SrCl2
242 Strontium nitrate formula Sr(NO3)2
243 Sucrose formula C12H22O11
244 Sugar chemical formula C12H22O11
245 Sulfate ion formula SO42−
246 Sulfur dioxide formula SO2
247 Sulfur trioxide formula SO3
248 Sulfuric acid formula H2SO4
249 Sulfurous acid formula H2SO3
250 Tartaric acid formula C4H6O6
251 Toluene formula C7H8
252 Urea formula CH4N2O
253 Vinegar chemical formula C2H4O2
254 Zinc acetate formula Zn(O2CCH3)2
255 Zinc carbonate formula ZnCO3
256 Zinc chloride formula ZnCl2
257 Zinc hydroxide formula Zn(OH)2
258 Zinc iodide formula ZnI2
259 Zinc nitrate formula Zn(NO3)2
260 Zinc phosphate formula Zn3(PO4)2
261 Zinc sulfate formula ZnSO4
262 Zinc sulfide formula ZnS

To learn more about chemical formula, nomenclature of organic compounds and other topics related to chemical formula in chemistry, download Byju’s The Learning App.

Practise This Question

Which of the following hold true for Zinc ion?