The mass of 20 moles of Fe is 1116.9 g or 1117 g/mol.
Calculation,
The mass of one mole of [tex]Fe[/tex] = 55.85 g/mol
Mass of 20 moles of [tex]Fe[/tex] = 20×55.85 g/mol
Mass of 20 moles of [tex]Fe[/tex] = 1116.9 g ≈ 1117 g/mol
The mass of the one mole of the substance (atom) is called molar mass.
Example: The molar mass of [tex]Fe[/tex] is 55.85 g/mol
To learn more about molar mass,
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