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1.0 g of Mg atom ("atomic mass" = 24.0 "...

`1.0 g` of `Mg` atom `("atomic mass" = 24.0 "amu")` in the vapour phase absorbs `50.0 kJ` energy. Find the composition of the final magnesium, if the first and the second IE of Mg are `740 kJ mol^(-1)` and `1450 kJ mol^(-1)`respectively.

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