How many atoms are there in 3 mol of copper and 0.5 mol of iron?

there is such a constant – the number of avogadro
it shows the number of atoms (ions) in 1 mole of a substance
N (a) = 6.02 * 10 ^ 23
so, in 3 moles 3 * 6.02 * 10 ^ 23 = 1.806 * 10 ^ 24 copper atoms
in 0.5 mol 0.5 * 6.02 * 10 ^ 23 = 3.01 * 10 ^ 23 atoms



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