What is relative molecular weight?
| April 8, 2021 | education
Relative molecular weight is the sum of the relative atomic masses of molecules, which is numerically equal to the molar mass.
To determine the molecular weight of complex molecules, it is necessary to sum up the relative atomic masses of the elements included in them. For example, the molecular weight of carbon dioxide (CO2) is:
MrСО2 = ArС +2 ArO = 12 + 2 • 16 = 44 amu. eat.
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