Answer to Question #101928 in General Chemistry for jude

Question #101928
e) i) Iron exists as a mixture of four isotopes, state the similarities and differences between these isotopes: 54Fe, 56Fe,57Fe, 58Fe.

ii) Use the data below to calculate the relative atomic mass of iron, give your answer to 3 significant figures.


Isotope Abundance
(%)
54Fe 5.8
56Fe 91.7
57Fe 2.2
58Fe 0.3
1
Expert's answer
2020-02-04T06:33:56-0500
  1. "Mmixture=\\Sigma Iambudance *Misotope"
  2. {Mmixt}=0.058*54+0.917*56+0.022*57+0.003*58=55.912
  3. [M]=g/mole
  4. Mmixture=55.912 g/moles

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