if a sample of Fe(SO4)3 contains 7.2 moles of O atoms then the number of S atoms in the given sample are ?

if a sample of Fe(SO4)3 contains 7.2 moles of O atoms then the number

1.	if a sample of Fe(SO4)3 contains 7.2 moles of O atoms then the number of S atoms in the given sample are ?
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