The sum of the atomic weights of the elements making up a compound is known as the ____

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Multiple Choice

The sum of the atomic weights of the elements making up a compound is known as the ____

Explanation:
When you add up the atomic weights of every atom in a molecule, you get its molecular weight. This represents the mass of one molecule in atomic mass units. The same numeric value, when expressed as mass per amount of substance, equals the molar mass in g/mol (so water has a molecular weight of about 18.02 amu per molecule or 18.02 g/mol per mole). Formula weight is a similar sum used for formula units, often for ionic compounds, while “ionic weight” isn’t a standard term. So the described sum is molecular weight.

When you add up the atomic weights of every atom in a molecule, you get its molecular weight. This represents the mass of one molecule in atomic mass units. The same numeric value, when expressed as mass per amount of substance, equals the molar mass in g/mol (so water has a molecular weight of about 18.02 amu per molecule or 18.02 g/mol per mole). Formula weight is a similar sum used for formula units, often for ionic compounds, while “ionic weight” isn’t a standard term. So the described sum is molecular weight.

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