How many moles of Fe are in 5.6 g Fe? How many Fe atoms are contained in the sample?

      

How many moles of Fe are in 5.6 g Fe? How many Fe atoms are contained in the sample?

  

Answers

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By definition, 1 mole of Fe is 56.0 g. 5.6 g Fe is therefore 0.1 mole of Fe. The number of Fe atoms in the sample is
0.1 mole x 6.022 x 10²³atoms/mole = 6.022 x 10²² atoms.

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sharon kalunda answered the question on April 8, 2019 at 13:03

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