asiliverdis15 asiliverdis15

22-02-2022
Chemistry

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How many iron atoms are in 7.890 g of iron?

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amakaolive amakaolive

22-02-2022

Answer:

mole = reactingmass = 7.890= 0.142 mol

molarmass 55.8

atoms = mol × alvagadro constant

0.142 × 6.02 × 10^23

=8.5484 × 10^22 Atoms

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