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Molar mass of chemical compounds. Calculator

Molar mass – physical property of the compound. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance.

The molar masses of chemical compounds can be defined as the sum of the molar masses of their constituent elements. For example, the molar mass of sulfuric acid H2SO4:
M(H2SO4) = 2M(H) + M(S) + 4M(O)= 2·1 + 32 + 24·16 = 98 (г/моль).
The unit of measurement is the kg/mol (kg per mole) in the SI system. But because of some historical reasons and make it easier to use, the molar mass is almost always expressed in g/mol (gram per mole). Designated by the letter M.
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