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1] 100 g of Fe contains = 1.0753 x 1024 number of atoms
Therefore, 100 grams of sodium contains more number of atoms than 100 grams of iron
2]1 mole of Aluminium Oxide (Al2O3) = 2 × 27 + 3 × 16 = 102 g. ...
We know, The number of atoms present in given mass = (Given mass ÷ molar mass) × Avogadro number.
3] sister that question I can't see properly can you click that question again
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