Question #5d254

1 Answer
Meave60
Oct 20, 2017

The mass of one mole of Fe atoms is "55.85 g/mol Fe"55.85 g/mol Fe.

Explanation:

One mole of anything is 6.022xx10^236.022×1023 anythings. Therefore, one mole of Fe atoms is 6.022xx10^236.022×1023 atoms.

Multiply the number of Fe atoms in one mole by the mass/atom of Fe.

(6.0221xx10^23color(red)cancel(color(black)("atoms Fe")))/(1"mol Fe")xx(9.274xx10^(-23)"g Fe")/(1color(red)cancel(color(black)("atom Fe")))="55.85 g/mol Fe"

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