If no. of O atoms in 1 mole is 1×1024, then the mass of one oxygen atom in a.m.u will be
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Thus, oxygen was assigned an atomic mass of 16. We now know that a hydrogen atom has a mass of 1.6735 x 10-24 grams, and that the oxygen atom has a mass of 2.6561 X 10-23 grams.
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This is a hypothetical case question
Usually, no of O atom in 1 mol is 6x10^23
Given here 1 mole Oatom is 1x10^24 atoms
Therefore apply unitary method to solve
6x 10^23 atoms of O atoms weighs 16amu
So 1x 10^24 will be = (16 x 1x 10^24)/ 6 x10^23
=. 160/6 =24.444
Usually, no of O atom in 1 mol is 6x10^23
Given here 1 mole Oatom is 1x10^24 atoms
Therefore apply unitary method to solve
6x 10^23 atoms of O atoms weighs 16amu
So 1x 10^24 will be = (16 x 1x 10^24)/ 6 x10^23
=. 160/6 =24.444
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