State why indirect method are utipized to determine the absolute mass of an atom exlain in brief the indirect method
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An indirect method to determine the absolute mass of an atom has been devised. The mass of a particular atom is taken as a standard unit and the masses of other atoms are related to this standard. ... The number does not signify the mass of an atom in grams. It is just a pure number.
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Relative atomic mass (symbol: Ar) or atomic weight is a dimensionless physical quantitydefined as the ratio of the average mass of atoms of a chemical element in a given sample to the atomic mass constant. The atomic mass constant (symbol: mu) is defined as being 1/12 of the mass of a carbon-12atom.[1][2] Since both quantities in the ratio are masses, the resulting value is dimensionless; hence the value is said to be relative.
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