Just add 'em up.
Example: 4-4'-methylene diphenyl diisocyanate, which is used to make polyurethane. (I could have picked something real common like water (3 atoms) or glucose (24 atoms) but I wanted to make this fun...) Its formula is:
C15H10N2O2
So we have:
15 carbon atoms
10 hydrogen atoms
2 nitrogen atoms
2 oxygen atoms
Or 29 atoms total.
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a chemical compound.So this being said, that basically means the chemical formula represents the atoms that are bonded to one another (An atom is classified according to chemical element and isotope more specifically)
It represents the amount of the substance. It can mean the number of atoms, molecules, formula units, or moles.
The subscript (The small number at the bottom). Like SnO2. It shows that Sn is one atom together, and the O has 2.
The chemical formula of sugar is C12H22O11, which represents a molecule composed of 12 carbon atoms, 22 hydrogen atoms, and 11 oxygen atoms.
The chemical formula Co2S3 represents cobalt trisulfide. It consists of two cobalt (Co) atoms and three sulfur (S) atoms.
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a chemical compound.So this being said, that basically means the chemical formula represents the atoms that are bonded to one another (An atom is classified according to chemical element and isotope more specifically)
It represents the amount of the substance. It can mean the number of atoms, molecules, formula units, or moles.
The general chemical formula for a straight chain hydrocarbon is CnH2n+2, where "n" represents the number of carbon atoms in the chain.
The chemical formula for an alkane with 42 carbons is C42H86. It follows the general formula CnH2n+2, where n represents the number of carbon atoms in the alkane chain.
The subscript (The small number at the bottom). Like SnO2. It shows that Sn is one atom together, and the O has 2.
The general formula of linear alkanes is CnH2n+2. If an alkane with 125 carbons exist (I don't know) the chemical formula will be C125H252 and the name pentacosehectane.
a subscript Number of atoms of that element in the molecule.
The shorthand notation for a compound is its chemical formula, which represents the types and number of atoms in the compound. It uses elemental symbols and subscripts to indicate the ratio of atoms present in the compound.
The subscript in the chemical formula of ammonia, NH₃, represents the number of atoms of each element in the molecule. In this case, it indicates that there is one nitrogen atom and three hydrogen atoms in the ammonia molecule.
The subscript in a chemical formula represents the amount of that atom in that compound's formula.
The number written in front of a chemical formula is called the coefficient. This represents the number of molecules of the substance in the chemical formula. For example, 8SO3 tells you that there are 8 molecules of SO3 or sulfur trioxide.
The exact number of atoms of each element in a unit of the compound can be shown in a chemical formula. Through the use of symbols, a chemical formula represents the proportions of atoms in a compound. For example, the chemical formula for water H2O indicates there are two hydrogen atoms and one oxygen atom.