The mass in amu of 75 atoms of aluminum is ; 2023.5 amu
Given that ;
1 atom of aluminum = 26.98 atomic mass unit
Determining the mass of 75 aluminum atom
= 26.98 amu * 75 atoms of aluminum
= 2023.5 amu
Atomic mass unit is the mass of (1/12) the mass of an atom of carbon-12 ( the reference standard for isotopes of elements ). from the amu table 1 atom of aluminum = 26.98 amu
Hence we can conclude that the mass in amu of 75 atoms of aluminum is = 2023.5 amu
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