Question #5d254

1 Answer
Meave60
Oct 20, 2017

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

Explanation:

One mole of anything is #6.022xx10^23# anythings. Therefore, one mole of Fe atoms is #6.022xx10^23# 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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