Atoms Counter for Chemical Formulas
Counter for the number of atoms of each element in one or more chemical formulas. Please enter the formula with the common element symbols, numbers not subscripted. The molecules may contain the elements 1 - 96 (this is hydrogen to curium, H - Cm), as well as the isotope deuterium (D). Brackets can't be processed, spaces and commas are ignored. At Quantity, the number of molecules can be multiplied. Several molecules can also be entered one after the other, the quantity then refers to all these molecules. Please enter a condensed chemical formula. A well-known example is H2O for water.
Chemical formula(s):
Quantity:
Number of atoms of the elements present:
...
Example: Acetic acid has the formula CH3COOH. 3 molecules of it contain 12 H atoms, 6 C atoms and 6 O atoms, a total of 24 atoms. One single molecule, of course, has one-third of each of these values. The number of different atoms is 3, regardless of the quantity.
Another random example from the vast array of different molecules that play a role in various processes: the chemical formula for cyclopentadienylmagnesium bromide, as it can be entered here, is C5H5MgBr. This contains a total of 12 atoms, four different ones: five hydrogen (H), five carbon (C), one magnesium (Mg), and one bromine (Br).
The elements that occur in the entered molecule are displayed in order of their atomic numbers and their frequency. The total number of atoms, as well as the number of different atoms, is also displayed. The number of different atoms hereby does not change with the number of molecules, but the other values do.
The atoms of course have different masses, which are not taken into account here. For the mass of an atom, see atomic masses. For the mass of a corresponding molecule, see molecular mass.
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