What is the atomic mass of calcium carbonate?

Molecular mass is a measure of the mass of a molecule in atomic mass units, or amus. The molecular mass of a molecule is the sum of all the atomic masses for each element in the molecule. Calcium carbonate contains one molecule of calcium, one molecule of carbon and 3 molecules of oxygen CaCO3

Mass of Calcium = 40

Mass of Carbon = 1

Mass of Oxygen = 16
=1×40+1×12+3×16
=40+12+48
=100g⋅mol−1

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