How many atoms are there in 5.6 g of iron?
| March 18, 2021 | education
M (O₂) = 16 2 = 32 g \ mol
N (Fe) = m \ M · Na = 5.6 g \ 56 g \ mol · 6.023 · 10²³ mol⁻¹ = 0.6 · 10²³ atoms
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