Average atomic mass of magnesium is 24.3...

Average atomic mass of magnesium is `24.31`amu. This magnesium is composed of 79 mole % of `24mg` and remaining 21 mole % of `25mg and 25mg`. Calculate mole % of `^26mg`.

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In a periodic table the average atomic mass of magnesium is given as 24.312 u. The average value is based on their relative natural abundance on earth. The three isotopes and their masses are ""_(12)^(24)Mg (23.98504u), ""_(12)^(25)Mg (24.98584u) and ""_(12)^(26)Mg (25.98259u) . The natural abundance of ""_(12)^(24)Mg is 78.99% by mass. Calculate the abundances of other two isotopes.

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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.31 To Q.60)

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